ANALOG DEVICES EV-21593-SOM Evaluation Board User Manual

EV-21593-SOM Evaluation Board

EV-21593-SOM ® Manual

Analog Devices, Inc. One Technology Way Norwood, MA 02062-9106

Revision 1.0, September 2020
Part Number 82-EV-21593-SOM-01

Copyright Information
© 2020 Analog Devices, Inc., ALL RIGHTS RESERVED. This document may not be reproduced in any form without prior, express written consent from Analog Devices, Inc.
Disclaimer Analog Devices, Inc. reserves the right to change this product without prior notice. Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use; nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under the patent rights of Analog Devices, Inc.
Trademark and Service Mark Notice The Analog Devices logo, Blackfin, Blackfin+, SHARC, SHARC+, CrossCore, VisualDSP++, EZ-KIT, EZ-Extender, and EngineerZone are registered trademarks of Analog Devices, Inc. All other brand and product names are trademarks or service marks of their respective owners.
Regulatory Compliance
The EV-21593-SOM evaluation board is designed to be used solely in a laboratory environment. The board is not intended for use as a consumer-end product or as a portion of a consumer-end product. The board is an open system design, which does not include a shielded enclosure and, therefore, may cause interference to other electrical devices in close proximity. This board should not be used in or near any medical equipment or RF devices.
The EV-21593-SOM evaluation board contains ESD (electrostatic discharge) sensitive devices. Electrostatic charges readily accumulate on the human body and equipment and can discharge without detection. Permanent damage may occur on devices subjected to high-energy discharges. Proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Store unused boards in the protective shipping package.

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Contents

Preface
Purpose of This Manual………………………………………………………………………………………………………………… 1­1 Manual Contents …………………………………………………………………………………………………………………………. 1­1 Technical Support ………………………………………………………………………………………………………………………… 1­2 Supported Integrated Circuit …………………………………………………………………………………………………………. 1­2 Supported Tools…………………………………………………………………………………………………………………………… 1­3 Product Information …………………………………………………………………………………………………………………….. 1­3
Analog Devices Website……………………………………………………………………………………………………………… 1­3 EngineerZone …………………………………………………………………………………………………………………………… 1­3
Using the Board
Product Overview ………………………………………………………………………………………………………………………… 2­1 Package Contents…………………………………………………………………………………………………………………………. 2­3 Default Configuration ………………………………………………………………………………………………………………….. 2­3 CrossCore Embedded Studio (CCES) Setup …………………………………………………………………………………….. 2­4 Debug Interface …………………………………………………………………………………………………………………………… 2­4 Board Power ……………………………………………………………………………………………………………………………….. 2­4 Power-On-Self Test………………………………………………………………………………………………………………………. 2­5 Example Programs ……………………………………………………………………………………………………………………….. 2­5 Reference Design Information ……………………………………………………………………………………………………….. 2­5 IS25LP512M – 512M- bit Serial Flash Memory with Dual and Quad SPI …………………………………………….. 2­5 IS43TR16512BL – 1Gx8, 512Mx16 8Gb DDR3 SDRAM ………………………………………………………………… 2­6 LT8636 – 42V, 5A/7A Peak Synchronous Step-Down Silent Switcher with 2.5µA Quiescent Current ………. 2­7 LTC3307A – 5V, 3A Synchronous Step-Down Silent Switcher in 2mm × 2mm LQFN …………………………… 2­7 LTC3310S – 5V, 10A Synchronous Step-Down Silent Switcher 2 in 3mm × 3mm LQFN ………………………. 2­7 ADP151 – Ultralow Noise, 200 mA, CMOS Linear Regulator …………………………………………………………… 2­8 STUSB4500 – USB 3.0 Power Delivery…………………………………………………………………………………………… 2­8

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Hardware Reference
System Architecture ……………………………………………………………………………………………………………………… 3­1 Software-Controlled Switches (SoftConfig)………………………………………………………………………………………. 3­2
Overview of SoftConfig ……………………………………………………………………………………………………………… 3­3 SoftConfig on the Board…………………………………………………………………………………………………………….. 3­6 Programming SoftConfig Switches ………………………………………………………………………………………………. 3­6 Switches……………………………………………………………………………………………………………………………………… 3­9 Boot Mode Select ( SW1 )…………………………………………………………………………………………………………… 3­9 Reset Pushbutton ( SW2 )…………………………………………………………………………………………………………. 3­10 Jumpers ……………………………………………………………………………………………………………………………………. 3­10 Power ( JP1 )…………………………………………………………………………………………………………………………. 3­10 LEDs ……………………………………………………………………………………………………………………………………….. 3­10 Fault ( LED1 ) ………………………………………………………………………………………………………………………… 3­11 Power ( LED3 ) ………………………………………………………………………………………………………………………. 3­11 GPIO ( LED2, LED4, LED5 ) ……………………………………………………………………………………………… 3­11 Reset ( LED6 )………………………………………………………………………………………………………………………… 3­12 Connectors ……………………………………………………………………………………………………………………………….. 3­12 JTAG ( P1 )……………………………………………………………………………………………………………………………. 3­13 MicroUSB Connector ( P2 ) …………………………………………………………………………………………………….. 3­13 USB Type C Connector ( P3 )…………………………………………………………………………………………………… 3­14 SoM Interface Connection ( J1,J2 and J3 )………………………………………………………………………….. 3­14

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Preface
1 Preface

Thank you for purchasing the Analog Devices, Inc. System-on-Module (SoM) EV-21593-SOM evaluation board.
The EV-21593-SOM primarily hosts the ADSP-21593 audio processor, 8 Gbit of ISSI DDR3 memory, a 512 Mbit Quad SPI FLASH, voltage regulation, a FTDI UART to USB interface, and a high speed external connector array that contains all of the peripheral I/O signals. Through the high speed external connector array, the EV-21593-SOM is intended for use with a growing family of SoM carrier products that contain a variety of peripherals to support different applications. The SoM carrier base products that exist today are the EV- SOMCRR-EZKIT and EVSOMCRR-AUTO .
The CrossCore Embedded Studio® (CCES) software development tool chain is required for a full evaluation of this hardware platform. The EV-21593-SOM can also be used in a limited standalone mode while not plugged into a SoM Carrier such as the EV-SOMCRR-EZKIT or EV-SOMCRR-AUTO . The standalone mode is useful for evaluating the CCES Software Development Tools and benchmarking software algorithms that do not require peripheral I/O.
The evaluation board is designed to be used in conjunction with the CrossCore Embedded Studio®2.10.0+ development environment for advanced application code development and debug, with features that enable the ability to:
· Create, compile, assemble, and link application programs written in C++, C, and assembly
· Load, run, step, halt, and set breakpoints in application programs
· Read and write data and program memory
· Read and write core and peripheral registers
Purpose of This Manual
This manual provides instructions for installing the product hardware (board). This manual describes operation and configuration of the board components and provides guidelines for running code on the board.
Manual Contents
The manual consists of:
· Using the board

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Technical Support
Provides basic board information. · Hardware Reference
Provides information about the hardware aspects of the board. · Bill of Materials
A companion file in PDF format that lists all of the components used on the board is available on the website at http://www.analog.com/EV-21593-SOM . · Schematic A companion file in PDF format documenting all of the circuits used on the board is available on the website at http://www.analog.com/EV-21593-SOM .
Technical Support
You can reach Analog Devices technical support in one of the following ways: · Post your questions in the processors and DSP support community at EngineerZone®: http://ez.analog.com/community/dsp · Submit your questions to technical support directly at: http://www.analog.com/support · E-mail your questions about processors, DSPs, and tools development software from CrossCore Embedded Studio or VisualDSP++®: If using CrossCore Embedded Studio or VisualDSP++ choose Help > Email Support. This creates an e-mail to processor.tools.support@analog.com and automatically attaches your CrossCore Embedded Studio or VisualDSP++ version information and license.dat file. · E-mail your questions about processors and processor applications to: processor.support@analog.com processor.china@analog.com · Contact your Analog Devices sales office or authorized distributor. Locate one at: http://www.analog.com/adi-sales
Supported Integrated Circuit
This evaluation system supports the Analog Devices ADSP-21593 IC.

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Supported Tools
Supported Tools
Information about code development tools for the EV-21593-SOM evaluation board and ADSP-2159x product family is available at: http://www.analog.com/EV-21593-SOM
Product Information
Product information can be obtained from the Analog Devices website and the online help system.
Analog Devices Website
The Analog Devices website, http://www.analog.com, provides information about a broad range of products – analog integrated circuits, amplifiers, converters, transceivers, and digital signal processors. To access a complete technical library for each processor family, go to http://www.analog.com/processors/technical_library. The manuals selection opens a list of current manuals related to the product as well as a link to the previous revisions of the manuals. When locating your manual title, note a possible errata check mark next to the title that leads to the current correction report against the manual. Also note, MyAnalog.com is a free feature of the Analog Devices website that allows customization of a web page to display only the latest information about products you are interested in. You can choose to receive weekly e-mail notifications containing updates to the web pages that meet your interests, including documentation errata against all manuals. MyAnalog.com provides access to books, application notes, data sheets, code examples, and more. Visit MyAnalog.com to sign up. If you are a registered user, just log on. Your user name is your e-mail address.
EngineerZone
EngineerZone is a technical support forum from Analog Devices, Inc. It allows you direct access to ADI technical support engineers. You can search FAQs and technical information to get quick answers to your embedded processing and DSP design questions. Use EngineerZone to connect with other DSP developers who face similar design challenges. You can also use this open forum to share knowledge and collaborate with the ADI support team and your peers. Visit http:// ez.analog.com to sign up.

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2 Using the Board

Using the Board

This chapter provides information on the major components and peripherals on the board, along with instructions for installing and setting up the emulation software.
Product Overview
Below is an image of the EV-21593-SOM board.

Figure 2-1: Board View

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Product Overview

The board features: · Analog Devices ADSP-21593 processor · Dual SHARC+ Cores · 400 ball BGA · 25 MHz oscillator · DDR3 Memory · 512Mx16 bit (8Gbit ) · ISSI IS43TR16512BL-125KBL · 1.35V · SPI Flash Quad (SPI2) Memory · 512Mbit · ISSI IS25LP512M – 512M-bit Serial Flash Memory with Dual and Quad SPI · Single/Dual/Quad SPI · Debug Interface (JTAG) · JTAG 10-pin 0.05″ header · LEDs · 8 LEDs: one power (green), one board reset (red), three general-purpose (amber),one fault (red) and two UART leds (amber) · Pushbuttons · One pushbutton, RESET · SoM Interface Connector · DAI · SPORT · SPI · UART · TWI · Link Port · GPIO · MLB

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Package Contents
· RESET · GND/3.3V/5V/12V output
Package Contents
Your EV-21593-SOM package contains the following items. · EV-21593-SOM board
Contact the vendor where you purchased your EV-21593-SOM evaluation board or contact Analog Devices, Inc. if any item is missing.
Default Configuration
The EV-21593-SOM board is designed to run as a standalone unit. The Default Hardware Setup figure shows the default settings for jumpers and switches and the location of the jumpers, switches, connectors, and LEDs. Confirm that your board is in the default configuration before using the board.

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CrossCore Embedded Studio (CCES) Setup

JP1

)

Power

Selection

Boot Mode Select SW1

SW2 Reset Button
Figure 2-2: Default Hardware Setup
CrossCore Embedded Studio (CCES) Setup
Information on using the CCES tools is available at: https://analog.com/cces- quickstart
Debug Interface
The EV-21593-SOM provides a JTAG connection via P1 . This is for attaching an emulator, such as the ICE-1000 or ICE-2000 to for debugging. When the EV-21593-SOM is connected to a carrier board the Debug Agent on the carrier board can be used. To use this Debug Agent, all postions on SW1 (on the carrier board) must be in the ON position. If an emulator, such as the ICE-1000 or ICE-2000, is used instead all postions on SW1 must be in the OFF position.
Board Power

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Power-On-Self Test

The EV-21593-SOM powered via when the board is in standalone mode. When in this mode the jumper on JP1 should be on Pins 1-2 to select power input from . When the EV-21593-SOM is connected to a carrier board the power is supplied via the carrier board. When in this mode the jumper on JP1 should be on Pins 2-3 to select power input from the carrier board.
Power-On-Self Test
The Power-On-Self-Test Program (POST) tests all the EZ-KIT carrier board peripherals and validates functionality as well as connectivity to the processor. Once assembled, each EZ-KIT carrier board is fully tested for an extended period of time with POST for all the compatible SoM modules. All EZ- KIT carrier boards are shipped with POST preloaded into flash memory. The POST is executed by resetting the board and connecting the USB To UART to your PC with an open terminal window. The POST also can be used as a reference for a custom software design or hardware troubleshooting.
Note that the source code for the POST program is included in the Board Support Package (BSP) along with the readme file that describes how the board is configured to run POST.
Example Programs
Example programs are provided with the EV-21593-SOM Board Support Package (BSP) to demonstrate various capabilities of the product. The programs can be found in the EV-21593-SOMexamples installation folder. Refer to the readme file provided with each example for more information.
Reference Design Information
A reference design info package is available for download on the Analog Devices Web site. The package provides information on the schematic design, layout, fabrication, and assembly of the board.
The information can be found at:
http://www.analog.com/EV-21593-SOM
IS25LP512M – 512M-bit Serial Flash Memory with Dual and Quad SPI
The IS25LP512M Serial Flash memory offers a versatile storage solution with high flexibility and performance in a simplified pin count package. ISSI’s “Industry Standard Serial Interface” Flash is for systems that require limited space, a low pin count, and low power consumption. The device is accessed through a 4-wire SPI Interface consisting of a Serial Data Input (SI), Serial Data Output (SO), Serial Clock (SCK), and Chip Enable (CE#) pins, which can also be configured to serve as multi-I/O (see pin descriptions).
The device supports Dual and Quad I/O, as well as standard, Dual Output, and Quad Output SPI. Clock frequencies of up to 133MHz allow for equivalent clock rates of up to 532MHz (133MHz x 4) which equates to 66.5Mbytes of data throughput. The IS25xE series of Flash adds support for DTR (Double Transfer Rate)

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IS43TR16512BL – 1Gx8, 512Mx16 8Gb DDR3 SDRAM

commands that transfer addresses and read data on both edges of the clock.These transfer rates can outperform 16bit Parallel Flash memories, allowing for efficient memory access to support XIP (eXecute In Place) operation.
The memory array is organized into programmable pages of 256/512 bytes. This family supports page program mode where 1 to 256/512 bytes of data are programmed in a single command.
QPI (Quad Peripheral Interface) supports 2-cycle instructions, further reducing instruction times. Pages can be erased in groups of 4Kbyte sectors, 32Kbyte blocks, 64K/256Kbyte blocks, and/or the entire chip. The uniform sector and block architecture allows for a high degree of flexibility so that the device can be utilized for a broad variety of applications requiring solid data retention.
IS43TR16512BL – 1Gx8, 512Mx16 8Gb DDR3 SDRAM

· Low Voltage (L): VDD and VDDQ = 1.35V + 0.1V, -0.067V – Backward compatible to 1.5V · High speed data transfer rates with system frequency up to 933 MHz · 8 internal banks for concurrent operation · 8n-Bit pre-fetch architecture · Programmable CAS Latency · Programmable Additive Latency: 0, CL-1,CL-2 · Programmable CAS WRITE latency (CWL) based on tCK · Programmable Burst Length: 4 and 8 · Programmable Burst Sequence: Sequential or Interleave · BL switch on the fly · Auto Self Refresh(ASR) · Self Refresh Temperature(SRT) · Refresh Interval: 7.8 µs (8192 cycles/64 ms) Tc= -40°C to 85°C 3.9 µs (8192 cycles/32 ms) Tc= 85°C to 95°C
1.95 µs (8192 cycles/16 ms) Tc= 95°C to 105°C 0.97 µs (8192 cycles/8 ms) Tc= 105°C to 115°C · Partial Array Self Refresh · Asynchronous RESET pin · TDQS (Termination Data Strobe) supported (x8 only) · OCD (Off-Chip Driver Impedance Adjustment) · Dynamic ODT (On-Die Termination) · Driver strength : RZQ/7, RZQ/6 (RZQ = 240 ) · Write Leveling

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EV-21593-SOM ® Manual

LT8636 – 42V, 5A/7A Peak Synchronous Step-Down Silent Switcher with 2.5µA Quiescent Current

· Up to 200 MHz in DLL off mode
LT8636 – 42V, 5A/7A Peak Synchronous Step-Down Silent Switcher with 2.5µA Quiescent Current

The LT8636 synchronous step-down regulator features Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at high switching frequencies. Peak current mode control with a 30ns minimum on-time allows high step-down ratios even at high switching frequencies.
The LT8636’s ultralow 2.5µA quiescent current–with the output in full regulation–enables applications requiring highest efficiency at very small load currents. A CLKOUT pin enables synchronizing other regulators to the LT8636.
Burst Mode operation enables ultralow standby current consumption, forced continuous mode can control frequency harmonics across the entire output load range, or spread spectrum operation can further reduce EMI emissions. Soft- start and tracking functionality is accessed via the TR/SS pin, and an accurate input voltage UVLO threshold can be set using the EN/UV pin.
LTC3307A – 5V, 3A Synchronous Step-Down Silent Switcher in 2mm × 2mm LQFN

The LTC3307A is a very small, high efficiency, low noise, monolithic synchronous 3A step-down DC/DC converter operating from a 2.25V to 5.5V input supply. Using constant frequency, peak current mode control at switching frequencies up to 3MHz and minimum on-time as low as 22ns, this regulator achieves fast transient response with small external components. Silent Switcher architecture minimizes EMI emissions.
The LTC3307A operates in forced continuous or pulse skip mode for low noise, or low-ripple Burst Mode operation for high efficiency at light loads, ideal for battery-powered systems. The IC regulates output voltages as low as 500mV. Other features include output overvoltage protection, short-circuit protection, thermal shutdown, clock synchronization, and up to 100% duty cycle operation for low dropout. The device is available in a low profile 12lead 2mm × 2mm × 0.74mm LQFN package with exposed pad for low thermal resistance.
LTC3310S – 5V, 10A Synchronous Step-Down Silent Switcher 2 in 3mm × 3mm LQFN

The LTC3310S is a very small, low noise, monolithic step-down DC/DC converter capable of providing up to 10A of output current from a 2.25V to 5.5V input supply. The device employs Silent Switcher 2 architecture with internal hot loop bypass capacitors to achieve both low EMI and high efficiency at switching frequencies as high as 5MHz. For systems with higher power requirements, multi-phasing parallel converters is readily implemented.
The LTC3310S uses a constant-frequency, peak current mode control architecture for fast transient response. A 500mV reference allows for low voltage outputs. 100% duty cycle operation delivers low drop out.

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ADP151 – Ultralow Noise, 200 mA, CMOS Linear Regulator
Other features include a power good signal when the output is in regulation, precision enable threshold, output overvoltage protection, thermal shutdown, a temperature monitor, clock synchronization, mode selection and output short circuit protection.
ADP151 – Ultralow Noise, 200 mA, CMOS Linear Regulator
The ADP151 is an ultralow noise, low dropout (LDO) linear regulator that operates from 2.2 V to 5.5 V and provides up to 200 mA of output current. The low 135 mV dropout voltage at 200 mA load improves efficiency and allows operation over a wide input voltage range. Using an innovative circuit topology, the ADP151 achieves ultralow noise performance without the necessity of a bypass capacitor, making the device ideal for noise-sensitive analog and RF applications. The ADP151 also achieves ultralow noise performance without compromising the power supply rejection ratio (PSRR) or transient line and load performance. The low 265 µA of operating supply current at 200 mA load makes the ADP151 suitable for battery-operated portable equipment. The ADP151 also includes an internal pull-down resistor on the EN input. The ADP151 is specifically designed for stable operation with tiny 1 µF, ±30% ceramic input and output capacitors to meet the requirements of high performance, space constrained applications. The ADP151 is capable of 16 fixed output voltage options, ranging from 1.1 V to 3.3 V. Short-circuit and thermal overload protection circuits prevent damage in adverse conditions. The ADP151 is available in tiny 5-lead TSOT, 6-lead LFCSP, and 4-ball, 0.4 mm pitch, halide- free WLCSP packages for the smallest footprint solution to meet a variety of portable power application requirements.
STUSB4500 – USB 3.0 Power Delivery
The STUSB4500 is a USB power delivery controller that addresses sink devices. It implements a proprietary algorithm to allow the negotiation of a power delivery contract with a source without MCU support (auto-run mode). PDO profiles are configured in an integrated non-volatile memory. The device supports dead battery mode and is suited for sink devices powered from dead battery state and requiring high power charging profile to be fully operational. Thanks to its 20 V technology, it implements high voltage features to protect the CC pins against short-circuits to VBUS up to 22 V and to support high voltage on the VBUS pins directly connected to the VBUS power path up to 28 V.

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3 Hardware Reference
This chapter describes the hardware design of the EV-21593-SOM .
System Architecture
The board’s configuration is shown in the Block Diagram figure.

Hardware Reference

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Software-Controlled Switches (SoftConfig)

Si5356A Clock

JTAG

512MB Flash

8GB DDR3

LEDs FTDI RS232

GPIO UART2

JTAG

SPI2

ADSP-21593

DDR3 Power

LT8636A/LTC3307A/ LTC3310A/ADP151

JTAG

DAI0/1 SPI0/1 TWI1/2 UART

HADC LinkPort

MLB

Debug Header

High Speed Connectors

Jumper
USB Type C Power Delviery

Figure 3-1: Block Diagram
This System on Module is designed to demonstrate the ADSP-21593 processor’s capabilities. The board has a 25 MHz input clock and runs at a max core clock frequency of 1GHz.
User I/O to the processor is provided in the form of two pushbuttons and three LEDs.
The software-controlled switches (SoftConfig) facilitate the switch multi- functionality by disconnecting the pushbuttons from their associated processor pins and reusing the pins elsewhere on the board.
Software-Controlled Switches (SoftConfig)
On the board, most of the traditional mechanical switches and jumpers have been replaced by I2C software-controlled switches. The remaining mechanical switches are provided for the boot mode and pushbuttons. Reference any SoftConfig*.c file found in the installation directory for an example of how to set up the SoftConfig feature of

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Software-Controlled Switches (SoftConfig)
the board through software. The SoftConfig section of this manual serves as a reference to any user that intends to modify an existing software example. If software provided by ADI is used, there should be little need to reference this section.
NOTE: Care should be taken when changing SoftConfig settings not to create a conflict with interfaces. This is especially true when connecting extender cards.
Overview of SoftConfig
In order to further clarify the use of electronic single FET switches and multi-channel bus switches, an example of each is illustrated and compared to a traditional mechanical switching solution. This is a generic example that uses similar FET and bus switch components that are on the board.
After this generic discussion there is a detailed explanation of the SoftConfig interface specific to the EV-21593SOM .
The Example of Individual FET Switches figure shows two individual FET switches (Pericom PI3A125CEX) with reference designators UA and UB. Net names ENABLE_A and ENABLE_B control UA and UB. The default FET switch enable settings in this example are controlled by resistors RA and RB which pull the enable pin 1 of UA and UB to ground (low). In a real example, these enable signals are controlled by the Microchip IO expander. The default pull-down resistors connects the signals EXAMPLE_SIGNAL_A and EXAMPLE_SIGNAL_B and also connects signals EXAMPLE_SIGNAL_C and EXAMPLE_SIGNAL_D. To disconnect EXAMPLE_SIGNAL_A from EXAMPLE_SIGNAL_B, the Microchip IO expander is used to change ENABLE_A to a logic 1 through software that interfaces with the Microchip. The same procedure for ENABLE_B disconnects EXAMPLE_SIGNAL_C from EXAMPLE_SIGNAL_D.

Figure 3-2: Example of Individual FET Switches

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Software-Controlled Switches (SoftConfig)
The following figure shows the equivalent circuit to the Example of Individual FET Switches figure but utilizes mechanical switches that are in the same package. Notice the default is shown by black boxes located closer to the ON label of the switches. In order to disconnect these switches, physically move the switch to the OFF position.
Figure 3-3: Example of a Mechanical Switch (Equivalent to Example of Individual FET Switches Figure)
The Example of Bus Switch figure shows a bus switch example, reference designator UC (Pericom PI3LVD512ZHE), selecting between lettered functionality and numbered functionality. The signals on the left side are multiplexed signals with naming convention letter_number. The right side of the circuit shows the signals separated into letter and number, with the number on the lower group (0B1) and the letter on the upper group (0B2). The default setting is controlled by the signal CONTROL_LETTER_NUMBER which is pulled low. This selects the number signals on the right to be connected to the multiplexed signals on the left by default. In this example, the Microchip IO expander is not shown but controls the signal CONTROL_LETTER_NUMBER and allows the user to change the selection through software.

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Software-Controlled Switches (SoftConfig)

Figure 3-4: Example of a Bus Switch
The following figure shows the equivalent circuit to the Example of Bus Switch figure but utilizes mechanical switches. Notice the default for reference designators SWC and SWD is illustrated by black boxes located closer to the ON label of the switches to enable the number signals by default. Also notice the default setting for reference designators SWE and SWF is OFF. In order to connect the letters instead of the numbers, the user physically changes all switches on SWC and SWD to the OFF position and all switches on SWE and SEF to the ON position.

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Software-Controlled Switches (SoftConfig)

Figure 3-5: Example of a Mechanical Switch (Equivalent to Example of Bus Switch)
SoftConfig on the Board
Two Microchip MCP23017 GPIO expanders provide control for individual electronic switches. The TWI2 interface of the processor communicates with the Microchip devices. There are individual switches with default settings that enable basic board functionality.
The Default Processor Interface Availability table lists the processor and board interfaces that are available by default. Note that only interfaces affected by software switches are listed in the table.

Table 3-1: Default Processor Interface Availability

Interface

Availability by Default

UART0

USB to UART FTDI232RQ

SPI Flash

Quad mode enabled

LEDs

Enabled

Programming SoftConfig Switches

On the board, two Microchip MCP23017 devices exist. Each of these devices have the following programming characteristics:
· Each GPIO register controls eight signals (software switches).

GPIO Register GPIOA

Register Address 0x12

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Software-Controlled Switches (SoftConfig)

GPIO Register GPIOB

Register Address 0x13

· By default, the Microchip MCP23017 GPIO signals function as input signals.
The signals must be programmed as output signals to override their default values. A zero is programmed into the register to enable the signal as an output. The following table shows the Microchip register addresses.

IODIR Register IODIRA IODIRB

IODIR Register Address 0x00 0x01

Each example in the Board Support Software (BSP) includes source files that program the soft switches, even if the default settings are being used. The README for each example identifies only the signals that are being changed from their default values. The code that programs the soft switches is located in the SoftConfig_XXX.c file in each example where XXX is the name of the baord.
The following tables (I2C Hardware Address 0x21 and I2C Hardware Address 0x22) outline the default values for each of the two Microchip MCP23017 devices.

Table 3-2: I2C Hardware Address 0x21 GPIO GPIOA GPIOB

MCP23017 Register Address 0x12 0x13

Default Value 0x02 0xC4

Table 3-3: I2C Hardware Address 0x22 GPIO GPIOA GPIOB

MCP23017 Register Address 0x12 0x13

Default Value 0xE0 0xFF

The board schematic shows how the two Microchip GPIO expanders are connected to the board’s ICs.
TablesOutput Signals of Microchip GPIO Expander (U13 Port A) and Output Signals of Microchip GPIO Expander (U13 Port B) show the output signals of the Microchip GPIO expander (U47), with a TWI address of 0100 001X, where X represents the read or write bit. The signals that control an individual FET have an entry in the FET column. The Component Connected column shows the board IC that is connected if the FET is enabled. The Microchip (U47) is controlling the enable signal of a FET switch. Also note that if a particular functionality of the processor signal is being used, it is in bold font in the Processor Signal column.

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Software-Controlled Switches (SoftConfig)

Table 3-4: Output Signals of Microchip GPIO Expander (U13 Port A)

Bit Signal Name

Description

FET

0 LED6

GPIO LED

1 LED7

GPIO LED

2 LED4

GPIO LED

3 SPI2FLASH_ Enable SPI Flash CS

U3

CS_EN

4 SPI2D2D3 Enabel SPI Flash Quad Mode U4 U5 EN

5 UART0_EN

Enable FTDI UART to USB U8

6 UART0FLOW Enables UART Flow Control on U8

EN

FTDI

7 NOT USED

Processor Signal

Connected

(if applicable)

None

LED6

None

LED7

None

LED4

PA_05/SPI2_SEL1b/

U11

OSPI_SEL1b/SMC0_D05/

SPI2_SSb

PA_02/SPI2_D2/OSPI_D2/ U11 TWI3_SCL/SMC0_D02/ TM0_ACLK3 PA_03/SPI2_D3/ OSPI_D3/TWI3_SDA/ SMC0_D03

PA_06/SPI0_CLK/

U7

UART0_TXb/OSPI_D4/

SMC0_D06/TM0_ACLK1

PA_07/SPI0_MISO/

UART0_RXb/OSPI_D5/

SMC0_D07/TM0_ACI0

PA_08/SPI0_MOSI/

U7

UART0_RTSb/OSPI_D6/

SMC0_D08/TM0_ACLK2

PA_09/SPI0_SEL1b/

UART0_CTSb/OSPI_D7/

SMC0_D09/SPI0_SSb

Default Low Low Low High High
Low
Low

Table 3-5: Output Signals of Microchip GPIO Expander (U13 Port B)

Bit Signal Name

Description

FET

0 NOT USED 1 NOT USED 2 NOT USED 3 NOT USED 4 NOT USED 5 NOT USED 6 NOT USED 7 NOT USED

Processor Signal (if applicable)

Connected Default

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EV-21593-SOM ® Manual

Switches

Switches
This section describes operation of the switches. The switch locations are shown in the Switch/Jumper Locations figure.
Boot Mode Select SW1

JP1

)

Power

Selection

SW2 Reset Button

Figure 3-6: Switch/Jumper Locations
Boot Mode Select ( SW1 )

The Boot Mode selection switch selects between the different boot modes of the processor. The Boot Mode Switch table shows the available boot mode settings. By default, the processor boots from SPI2 master boot which uses the on-board SPI flash memory.

Table 3-6: Boot Mode Switch Position 0 1

Processor Boot Mode No Boot SPI Master Boot (Default)

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Switches

Table 3-6: Boot Mode Switch (Continued) Position 2 3 4 5 6 7

Processor Boot Mode SPI Slave Boot UART Boot Link Port Boot OSPI Master Boot Reserved Reserved

Reset Pushbutton ( SW2 )

The reset pushbutton resets the ADSP-21593 processor. The reset signal also is connected to the expansion connectors via the SYS_HWRSTsignal. Reset ( LED6 ) is used to indicate when the board is in reset.

Jumpers

This section describes functionality of the configuration jumpers. The Switch/Jumper Locations figure shows the jumper locations.
Power ( JP1 )
The Power jumper selects the input power source to the module. Pin 1-2 selects power input from MicroUSB Connector ( P2 ) and Pin 2-3 selects Power from the SoM Interface Connection. When using the EV-SOMCRR-EZKIT or other plug in base board, use Jumper setting Pin 2-3.

LEDs

This section describes the on-board LEDs. The LED Locations figure shows the LED locations.

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EV-21593-SOM ® Manual

LEDs 2, 4 and 5 GPIO

LED3 Power

LEDs
LED8 TX LED7 RX
LED1 Fault

LED6 Reset

Figure 3-7: LED Locations
Fault ( LED1 )

When ON, it indicates a system fault. For more information, refer to the ADSP- 2159xHardware Reference Manual.
Power ( LED3 )
When ON (green), it indicates that power is being supplied to the board properly.
GPIO ( LED2, LED4, LED5 )

Three LEDs are connected to the SoftConfig(see the GPIO LEDs table). The LEDs are active high and are turned ON (amber) by writing to the U13 SoftConfig IC.

Table 3-7: GPIO LEDs Reference Designator LED2 LED4

Programmable Flag Pin SoftSwitch SoftSwitch

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LEDs

Table 3-7: GPIO LEDs (Continued) Reference Designator LED5

Programmable Flag Pin SoftSwitch

Reset ( LED6 )

When ON (red), it indicates that the board is in reset. A master reset is asserted by pressing SW2 , which activates the LED. For more information, see Reset Pushbutton ( SW2 ).

Connectors

This section describes connector functionality and provides information about mating connectors. The connector locations are shown in the Connector Locations figure.

P1 JTAG

P2 Micro USB
P3 USB Power

Figure 3-8: Connector Locations Top View

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EV-21593-SOM ® Manual

Connectors
J1

J2

J3

Figure 3-9: Connector Locations Bottom View
JTAG ( P1 )

The JTAG header provides debug connectivity for the processor. This is a 0.05″ shrouded through-hole connector from SAMTEC (SHF-105-01-L-D-SM-K). This connector mates with ICE- 1000, ICE-2000, and any newer Analog Devices emulators. For more information, see Debug Interface
MicroUSB Connector ( P2 )
USB Connection for FTDI RS232 to USB connection.

Part Description MicroUSB 2.0
USB A to MicroUSB

Manufacturer Hirose
Mating Cable ANY

Part Number ZX62D-AB-5P8(30)
ANY

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Connectors

USB Type C Connector ( P3 )
USB Typc C Power Delivery for powering the SoM when JP1 is set to position 1-2.

Part Description USB Type C
USB Type C

Manufacturer MOLEX
Mating Cable ANY

Part Number 1054500101
ANY

SoM Interface Connection ( J1,J2 and J3 )

The SoM Interface consists of three SAMTEC high speed connectors that provide the DSP peripheral signals for use with a plug in baseboard. The SoM Connector figure shows the connector locations.
These signals are based upon the peripheral signal needs, which allows multiple DSPs to be used with this connection. These connectors are self- mating and the pinout here reflects the connectors on the EV-21593-SOM.

Table 3-8: SoM Interface A Connector

Pin Signal

Pin Signal

1 GND1

21 DAI0_PIN10

2 GND2

22 DAI1_PIN10

3 DAI0_PIN01

23 DAI0_PIN11

4 DAI1_PIN01

24 DAI1_PIN11

5 DAI0_PIN02

25 DAI0_PIN12

6 DAI1_PIN02

26 DAI1_PIN12

7 DAI0_PIN03

27 NU

8 DAI1_PIN03

28 NU

9 DAI0_PIN04

29 NU

10 DAI1_PIN04

30 NU

11 DAI0_PIN05

31 NU

12 DAI1_PIN05

32 NU

13 DAI0_PIN06

33 NU

14 DAI1_PIN06

34 NU

15 DAI0_PIN07

35 NU

16 DAI1_PIN07

36 NU

17 DAI0_PIN08

37 NU

18 DAI1_PIN08

38 NU

Pin Signal 41 DAI0_PIN20 42 DAI1_PIN20 43 GND3 44 GND4 45 GND5 46 GND6 47 HADC_VIN0 48 NU 49 HADC_VIN1 50 NU 51 HADC_VIN2 52 NU 53 HADC_VIN3 54 NU 55 GND7 56 GND8 57 NU 58 NU

Pin Signal 61 NU 62 NU 63 NU 64 NU 65 NU 66 NU 67 NU 68 NU 69 NU 70 NU 71 NU 72 NU 73 NU 74 NU 75 NU 76 NU 77 GPIO1 78 NU

Pin Signal 81 GPIO3 82 NU 83 GPIO4 84 GPIO6 85 GPIO5 86 GPIO7 87 GND9 88 CNT_UD 89 NU 90 CNT_ZM 91 NU 92 CNT_DG 93 NU 94 GND10 95 NU 96 MLB_CLK 97 NU 98 MLB_SIG

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Connectors

Table 3-8: SoM Interface A Connector (Continued)

Pin Signal

Pin Signal

19 DAI0_PIN09

39 DAI0_PIN19

20 DAI1_PIN09

40 DAI1_PIN19

Pin Signal 59 NU 60 NU

Pin Signal 79 GPIO2 80 NU

Pin Signal 99 NU 100 MLB_DAT

Table 3-9: SoM Interface B Connector

Pin Signal

Pin Signal

Pin

1 GND1

21 OSPI_D7

41

2 GND2

22 SPI1_SEL2b

42

3 SP2_OSPI_MISO 23 SPI2_SEL2b

43

4 SPI0_CLK

24 GND3

44

5 SP2_OSPI_MOSI 25 GND4

45

6 SPI0_MISO

26 SPI0_RDY

46

7 SPI2_OSPI_D2 27 SPI2_OSPI_DQS 47

8 SPI0_MOSI

28 SPI1_RDY

48

9 SP2_OSPI_D3 29 NU

49

10 SPI0_SSb

30 SPI2_RDY

50

11 SP2_OSPI_CLK 31 TWI0_SCL

51

12 SPI0_SEL2b

32 UART1_TXb

52

13 SP2_OSPI_SSb 33 TWI0_SDA

53

14 SPI1_CLK

34 UART1_RXb

54

15 OSPI_D4

35 TWI1_SCL

55

16 SPI1_MISO

36 UART1_RTSb 56

17 OSPI_D5

37 TWI1_SDA

57

18 SPI1_MOSI

38 UART1_CTSb 58

19 OSPI_D6

39 TWI2_SCL

59

20 SPI1_SSb

40 UART2_TXb

60

Signal TWI2_SDA UART2_RXb UART0_TXb UART2_RTSb UART0_RXb UART2_CTSb UART0_RTSb GND6 UART0_CTSb GPIO1 GND5 GPIO2 NU NU NU NU NU NU NU NU

Pin Signal

Pin Signal

61 NU

81 LINKPORT0_D7

62 GND8

82 LINKPORT1_D7

63 NU

83 LINKPORT0_D6

64 CAN0_TX 84 LINKPORT1_D6

65 NU

85 LINKPORT0_D5

66 CAN0_RX 86 LINKPORT1_D5

67 NU

87 LINKPORT0_D4

68 GND

88 LINKPORT1_D4

69 NU

89 LINKPORT0_D3

70 CAN1_TX 90 LINKPORT1_D3

71 GND7

91 LINKPORT0_D2

72 CAN1_RX 92 LINKPORT1_D2

73 NU

93 LINKPORT0_D1

74 NU

94 LINKPORT1_D1

75 NU

95 LINKPORT0_D0

76 NU

96 LINKPORT1_D0

77 NU

97 LINKPORT0_ACK

78 NU

98 LINKPORT1_ACK

79 GND9

99 LINKPORT0_CLK

80 GND10 100 LINKPORT1_CLK

Table 3-10: SoM Interface C Connector

Pin Signal

Pin Signal

1 GND1

21 NU

2 GND2

22 GND4

3 NU

23 NU

4 NU

24 NU

Pin Signal 41 GND7 42 CLK1 43 NU 44 CLK2

Pin Signal 61 NU 62 NU 63 NU 64 NU

Pin Signal 81 NU 82 GPIO3 83 NU 84 GPIO4

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Connectors

Table 3-10: SoM Interface C Connector (Continued)

Pin Signal

Pin Signal

5 NU

25 GND3

6 NU

26 NU

7 NU

27 NU

8 NU

28 NU

9 NU 10 NU

29 NU 30 NU

11 NU 12 NU 13 NU 14 NU 15 NU 16 NU 17 NU 18 NU 19 NU 20 NU

31 NU 32 NU 33 NU 34 NU 35 NU 36 GND5 37 NU 38 SYS_CLKOUT 39 GND6 40 AUDIO_CLK

Pin Signal

Pin Signal

45 NU

65 NU

46 GND8

66 NU

47 NU

67 NU

48 JTG0_TMS/ SWDIO

68 NU

49 NU

69 NU

50 JTG0_TCK/ SWCLK

70 NU

51 NU

71 NU

52 JTG0_TDO/SW0 72 NU

53 NU

73 NU

54 JTG0_TDI

74 NU

55 NU

75 NU

56 JTG0_TRST

76 GND10

57 NU

77 NU

58 TARGET_RESET 78 GPIO1

59 NU

79 NU

60 GND9

80 GPIO2

Pin Signal 85 GND11 86 GPIO5 87 VDD_EXT 88 GPIO6
89 VDD_VREF 90 GND12
91 VDD_A 92 VDD_DMC 93 VDD_INT 94 SYS_HWRST 95 PWR_SEQ_GOOD 96 SoM_Reset 97 VDD1 98 VSS1 99 VDD2 100 VSS2

Table 3-11: Mating Connector Part Description 100-pin, 0.64 mm
100-pin, 0.64 mm

Manufacturer SAMTEC
Mating Connector SAMTEC

Part Number LSS-150-01-L-DV-A-K
LSS-150-01-L-DV-A-K

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EV-21593-SOM ® Manual

17

References

• EngineerZone
• Processors and DSP - EngineerZone
• 📧processor.china@analog.com
• 📧processor.tools.support@analog.com
• myanalog.com - This website is for sale! - myanalog Resources and Information.
• EV-21593-SOM Evaluation Board | Analog Devices
• CrossCore Embedded Studio(CCES) Quick Start for Windows [Analog Devices Wiki]

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