PORTWELL PCOM-C880 Evaluation Carrier Board User Guide

COM-HPC™ PCOM-C880 User’s Guide R0.1

PCOM-C880 Evaluation Carrier Board

Revision History

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Warranty
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COM-HPC Introduction

COM-HPC® (for “Computer on Module – High Performance Computing”) is a PICMG® sponsored open standard for a family of high performance computer modules targeting the embedded computer space. The embedded space differs from the commercial space with respect to features such as long-term availability, extended temperature operation, mechanical ruggedness, hardware and firmware that can be customized to the application, and Module vendor support to product developers. In the COM development model, the COMs are standard product offerings, and they are used with Carrier boards that are usually application specific, with additional features, connectors and geometries suited to the customer product at hand. The COM-HPC® modules are available in following form factors:

• Size A – 95 mm x 120 mm
• Size B – 120 mm x 120 mm
• Size C – 160 mm x 120 mm
• Size D – 160 mm x 160 mm
• Size E – 200 mm x 160 mm

1.1 PCOM-C880
Portwell PCOM-C880 support the COM-HPC client type module Sizes A, B, and C with ATX size form factor. This carrier board passed the most of Portwell evaluation testing. These functions include but are not limited to a rich complement of high speed interfaces such as DP display, PCIe, RJ45, USB 3.2, SATA. And also support several legacy I/O such as UART, GPIO, SMBUS, I2C.

Block Diagram

Specifications

General

Product| Ø   PCOM-C880
Form Factor| Ø   ATX Size (305 X 244mm)
Supported Module| Ø   COM-HPC client, size A / B / C
General Function| Ø   RTC battery
Ø   Postcode display
Ø   BIOS SPI Socket
Ø   Power BTN / Reset BTN
Ø   Lid BTN / Sleep BTN
Ø   RapidShutdown BTN
Audio codec| Ø   Realtek ALC888s
I/O Interface

SATA| Ø   2 x SATA III
USB| Ø   4x USB 3.2 Gen2 port
Ø   4x USB 2.0 port
Ethernet| Ø   2x 2.5Gbe RJ45
PCI Express| Ø   2x PCIe x16
Ø   2x PCIe x4
Ø   2x M.2 M key
Ø   1x PCIe x1 (Route to PCIe_BMC lane)
Display| Ø   3x DP (via module DDI signal)
Ø   1x DP (via module eDP signal, route to standard DP for evaluation purpose)
---|---
Legacy I/O| Ø   GPIO
Ø   I2C
Ø   SMBus
Ø   UART
Ø   GP SPI
Others| Ø   Audio jack
Ø   2x FAN (1x support PWM control)
Ø   MIPI-CSI (for signal measurement purpose)

Table 1 PCOM-C880 SPEC
3.1 Mechanical Dimensions

Top Side Dimension

Bottom Side Dimension

3.2 Environmental Specifications

3.3 Ordering Guide

Module

Table 3 Ordering Guide – PCOM-C880

Accessory

Table 4 Ordering Guide – Accessory

Pin out Tables

Connector J1

J1

Pin| RAW A| Pin| RAW B| Pin| RAW C| Pin| PAW D
A1| +V12P0S| B1| +V12P0S| C1| +V12P0S| D1| +V12P0S
A2| +V12P0S| B2| EXT_PWRBTN_N| C2| RSTBTN_N| D2| +V12P0S
A3| +V12P0S| B3| +V12P0S| C3| +V12P0S| D3| +V12P0S
A4| +V12P0S| B4| EXT_PWRBTN_N| C4| CARRIER_HOT_N| D4| +V12P0S
A5| +V12P0S| B5| +V12P0S| C5| +V12P0S| D5| +V12P0S
A6| +V12P0S| B6| TAMPER_N| C6| VIN_PWROK| D6| +V12P0S
A7| +V12P0S| B7| +V12P0S| C7| +V12P0S| D7| +V12P0S
A8| +V12P0S| B8| KBC_SLP_S3_N| C8| KBC_SLP_S4_N| D8| +V12P0S
A9| +V12P0S| B9| +V12P0S| C9| +V12P0S| D9| +V12P0S
A10| GND| B10| WDT_STROBE_N| C10| GND| D10| PCIE_WAKE_CN_N
A11| BATLOW_N| B11| EC_WDT_CN| C11| KBC_SYS_FANOUT1| D11| N/C
A12| PLTRST_N| B12| GND| C12| KBC_SYS_FANIN1| D12| GND
A13| GND| B13| USB2_P6_DN| C13| GND| D13| USB2_P2_DN
A14| USB2_P8_DN| B14| USB2_P6_DP| C14| USB2_P4_DN| D14| USB2_P2_DP
A15| USB2_P8_DP| B15| GND| C15| USB2_P4_DP| D15| GND
A16| GND| B16| USB2_P5_DN| C16| GND| D16| USB2_P1_DN
A17| USB2_P7_DN| B17| USB2_P5_DP| C17| USB2_P3_DN| D17| USB2_P1_DP
A18| USB2_P7_DP| B18| GND| C18| USB2_P3_DP| D18| GND
A19| GND| B19| HDA_SYNC| C19| GND| D19| DDI1_CTRLDATA_AUXN
---|---|---|---|---|---|---|---
A20| DDI2_CTRLDATA_AUXN| B20| HDA_SDOUT| C20| DMIC1_CLK| D20| DDI1_CTRLCLK_AUXP
A21| DDI2_CTRLCLK_AUXP| B21| HDA_RST_N| C21| DMIC1_DATA| D21| GND
A22| GND| B22| HDA_SDIN0| C22| GND| D22| DDI1_TX0_DN
A23| DDI2_TX0_DN| B23| HDA_BITCLK| C23| SNDW0_CLK| D23| DDI1_TX0_DP
A24| DDI2_TX0_DP| B24| +5VSB| C24| SNDW0_DATA| D24| GND
A25| GND| B25| USB_OC3_N| C25| GND| D25| DDI1_TX1_DN
A26| DDI2_TX1_DN| B26| USB_OC2_N| C26| DDI1_AUX_SEL| D26| DDI1_TX1_DP
A27| DDI2_TX1_DP| B27| USB_OC1_N| C27| DDI2_AUX_SEL| D27| GND
A28| GND| B28| USB_OC0_N| C28| DDI1_HPD| D28| DDI1_TX2_DN
A29| DDI2_TX2_DN| B29| N/C| C29| DDI2_HPD| D29| DDI1_TX2_DP
A30| DDI2_TX2_DP| B30| N/C| C30| EDP_HPD| D30| GND
A31| GND| B31| N/C| C31| EDP_VDDEN| D31| DDI1_TX3_DN
A32| DDI2_TX3_DN| B32| N/C| C32| EDP_BKLTEN| D32| DDI1_TX3_DP
A33| DDI2_TX3_DP| B33| N/C| C33| EDP_BKLTCTL| D33| GND
A34| GND| B34| N/C| C34| GND| D34| PM_ACPRESENT
A35| eDP_AUXN| B35| USB_PD_I2C_CLK| C35| N/C| D35| N/C
A36| eDP_AUXP| B36| USB_PD_I2C_DATA| C36| N/C| D36| GND
A37| GND| B37| N/C| C37| GND| D37| USB3_TX2_DN
A38| eDP_TX0_DN| B38| N/C| C38| USB3_RX2_DN| D38| USB3_TX2_DP
A39| eDP_TX0_DP| B39| N/C| C39| USB3_RX2_DP| D39| GND
A40| GND| B40| N/C| C40| GND| D40| N/C
A41| eDP_TX1_DN| B41| N/C| C41| N/C| D41| N/C
A42| eDP_TX1_DP| B42| GND| C42| N/C| D42| GND
A43| GND| B43| N/C| C43| GND| D43| USB3_TX1_DN
A44| eDP_TX2_DN| B44| N/C| C44| USB3_RX1_DN| D44| USB3_TX1_DN
A45| eDP_TX2_DP| B45| LID_N| C45| USB3_RX1_DN| D45| GND
---|---|---|---|---|---|---|---
A46| GND| B46| SLEEP_N| C46| GND| D46| N/C
A47| eDP_TX3_DN| B47| +V3P3A| C47| N/C| D47| N/C
A48| eDP_TX3_DP| B48| SPI0_CS_CN_N| C48| N/C| D48| GND
A49| GND| B49| BSEL0| C49| GND| D49| SATA_RX0_DN
A50| eSPI_IO0| B50| BSEL1| C50| BOOT_SPI_IO0| D50| SATA_RX0_DP
A51| eSPI_IO1| B51| BSEL2| C51| BOOT_SPI_IO1| D51| GND
A52| eSPI_IO2| B52| eSPI_ALERT0_N| C52| BOOT_SPI_IO2| D52| SATA_TX0_DN
A53| eSPI_IO3| B53| eSPI_ALERT1_N| C53| BOOT_SPI_IO3| D53| SATA_TX0_DP
A54| eSPI_CLK| B54| eSPI_CS0_CN_N| C54| BOOT_SPI_CLK| D54| GND
A55| GND| B55| N/C| C55| GND| D55| SATA_RX1_DN
A56| SRCCLKREQ0_N| B56| eSPI_RST0_N| C56| CLK_PCIE1_DN| D56| SATA_RX1_DP
A57| SRCCLKREQ1_N| B57| GND| C57| CLK_PCIE1_DP| D57| GND
A58| GND| B58| PCIE_BMC_RX_DN| C58| GND| D58| SATA_TX1_DN
A59| PCIE_BMC_TX_DN| B59| PCIE_BMC_RX_DP| C59| CLK_PCIE0_DN| D59| SATA_TX1_DP
A60| PCIE_BMC_TX_DP| B60| GND| C60| CLK_PCIE0_DP| D60| GND
A61| GND| B61| PCIE_RX9_DN| C61| GND| D61| PCIE_TX1_DN
A62| PCIE_TX9_DN| B62| PCIE_RX9_DP| C62| PCIE_RX1_DN| D62| PCIE_TX1_DP
A63| PCIE_TX9_DP| B63| GND| C63| PCIE_RX1_DP| D63| GND
A64| GND| B64| PCIE_RX10_DN| C64| GND| D64| PCIE_TX2_DN
A65| PCIE_TX10_DN| B65| PCIE_RX10_DP| C65| PCIE_RX2_DN| D65| PCIE_TX2_DP
A66| PCIE_TX10_DP| B66| GND| C66| PCIE_RX2_DP| D66| GND
A67| GND| B67| PCIE_RX11_DN| C67| GND| D67| PCIE_TX3_DN
A68| PCIE_TX11_DN| B68| PCIE_RX11_DP| C68| PCIE_RX3_DN| D68| PCIE_TX3_DP
A69| PCIE_TX11_DP| B69| GND| C69| PCIE_RX3_DP| D69| GND
A70| GND| B70| PCIE_RX12_DN| C70| GND| D70| PCIE_TX4_DN
A71| PCIE_TX12_DN| B71| PCIE_RX12_DP| C71| PCIE_RX4_DN| D71| PCIE_TX4_DP
---|---|---|---|---|---|---|---
A72| PCIE_TX12_DP| B72| GND| C72| PCIE_RX4_DP| D72| GND
A73| GND| B73| PCIE_RX17_DN| C73| GND| D73| PCIE_TX5_DN
A74| PCIE_TX17_DN| B74| PCIE_RX17_DP| C74| PCIE_RX5_DN| D74| PCIE_TX5_DP
A75| PCIE_TX17_DP| B75| GND| C75| PCIE_RX5_DP| D75| GND
A76| GND| B76| PCIE_RX18_DN| C76| GND| D76| PCIE_TX6_DN
A77| PCIE_TX18_DN| B77| PCIE_RX18_DP| C77| PCIE_RX6_DN| D77| PCIE_TX6_DP
A78| PCIE_TX18_DP| B78| GND| C78| PCIE_RX6_DP| D78| GND
A79| GND| B79| PCIE_RX19_DN| C79| GND| D79| PCIE_TX7_DN
A80| PCIE_TX19_DN| B80| PCIE_RX19_DP| C80| PCIE_RX7_DN| D80| PCIE_TX7_DP
A81| PCIE_TX19_DP| B81| GND| C81| PCIE_RX7_DP| D81| GND
A82| GND| B82| PCIE_RX20_DN| C82| GND| D82| PCIE_TX8_DN
A83| PCIE_TX20_DN| B83| PCIE_RX20_DP| C83| PCIE_RX8_DN| D83| PCIE_TX8_DP
A84| PCIE_TX20_DP| B84| GND| C84| PCIE_RX8_DP| D84| GND
A85| GND| B85| N/C| C85| GND| D85| L1_MDI0_N
A86| +VRTC_C| B86| RSMRST_OUT_C| C86| SMB_CLK_DUAL| D86| L1_MDI0_P
A87| SUS_CLK| B87| UART1_TXD| C87| SMB_DATA_DUAL| D87| GND
A88| EC_GPIO0| B88| UART1_RXD| C88| SMBALERT_N| D88| L1_MDI1_N
A89| EC_GPIO1| B89| UART1_RTS_N| C89| UART0_TXD| D89| L1_MDI1_P
A90| EC_GPIO2| B90| UART1_CTS_N| C90| UART0_RXD| D90| GND
A91| EC_GPIO3| B91| N/C| C91| UART0_RTS_N| D91| L1_MDI2_N
A92| EC_GPIO4| B92| N/C| C92| UART0_CTS_N| D92| L1_MDI2_P
A93| EC_GPIO5| B93| GSPI_MOSI| C93| SMB_CLK_EC| D93| GND
A94| EC_GPIO6| B94| GSPI_MISO| C94| SMB_DATA_EC| D94| L1_MDI3_N
A95| EC_GPIO7| B95| GSPI_CS0_N| C95| I2C0_ALERT_N| D95| L1_MDI3_P
A96| EC_GPIO8| B96| GSPI_CS1_N| C96| I2C1_SCL| D96| GND
A97| EC_GPIO9| B97| N/C| C97| I2C1_DATA| D97| L1_LED_2500_N
---|---|---|---|---|---|---|---
A98| EC_GPIO10| B98| N/C| C98| L1_SDP| D98| L1_LED_1000_N
A99| EC_GPIO11| B99| GSPI_CLK| C99| N/C| D99| L1_LED_LINK_N/ACT_N
A100| Type0| B100| GSPI_ALERT_N| C100| TYPE1| D100| TYPE2

Connector J2

J2

Pin| RAW E| Pin| RAW F| Pin| RAW G| Pin| RAW H
E1| RAPID_SHUTDOWN| F1| N/C| G1| RSVD| H1| GND
E2| GND| F2| N/C| G2| GND| H2| USB2_SSTX0_DN
E3| DDI3_CTRLDATA_AUXN| F3| N/C| G3| USB3_RX3_DN| H3| USB2_SSTX0_DP
E4| DDI3_CTRLCLK_AUXP| F4| N/C| G4| USB3_RX3_DP| H4| GND
E5| GND| F5| N/C| G5| GND| H5| N/C
E6| DDI3_TX0_DN| F6| N/C| G6| N/C| H6| N/C
E7| DDI3_TX0_DP| F7| N/C| G7| N/C| H7| GND
E8| GND| F8| N/C| G8| GND| H8| USB3_SSTX0_DN
E9| DDI3_TX1_DN| F9| N/C| G9| USB3_RX4_DN| H9| USB3_SSTX0_DP
E10| DDI3_TX1_DP| F10| N/C| G10| USB3_RX4_DP| H10| GND
E11| GND| F11| N/C| G11| GND| H11| N/C
E12| DDI3_TX2_DN| F12| N/C| G12| N/C| H12| N/C
E13| DDI3_TX2_DP| F13| N/C| G13| N/C| H13| GND
E14| GND| F14| N/C| G14| GND| H14| USB2_AUX_DN
E15| DDI3_TX3_DN| F15| N/C| G15| N/C| H15| USB2_AUX_DP
---|---|---|---|---|---|---|---
E16| DDI3_TX3_DP| F16| N/C| G16| N/C| H16| GND
E17| GND| F17| N/C| G17| N/C| H17| USB3_AUX_DN
E18| DDI3_AUX_SEL| F18| N/C| G18| N/C| H18| USB3_AUX_DP
E19| DDI3_HPD| F19| GND| G19| PEG_LANE_REV_N| H19| GND
E20| GND| F20| PCIE_RX21_DN| G20| GND| H20| N/C
E21| PCIE_TX21_DN| F21| PCIE_RX21_DP| G21| N/C| H21| N/C
E22| PCIE_TX21_DP| F22| GND| G22| N/C| H22| N/C
E23| GND| F23| PCIE_RX22_DN| G23| GND| H23| N/C
E24| PCIE_TX22_DN| F24| PCIE_RX22_DP| G24| N/C| H24| N/C
E25| PCIE_TX22_DP| F25| GND| G25| N/C| H25| N/C
E26| GND| F26| PCIE_RX23_DN| G26| GND| H26| N/C
E27| PCIE_TX23_DN| F27| PCIE_RX23_DP| G27| N/C| H27| N/C
E28| PCIE_TX23_DP| F28| GND| G28| N/C| H28| N/C
E29| GND| F29| PCIE_RX24_DN| G29| GND| H29| N/C
E30| PCIE_TX24_DN| F30| PCIE_RX24_DP| G30| N/C| H30| N/C
E31| PCIE_TX24_DP| F31| GND| G31| N/C| H31| N/C
E32| GND| F32| N/C| G32| GND| H32| N/C
E33| N/C| F33| N/C| G33| N/C| H33| N/C
E34| N/C| F34| GND| G34| N/C| H34| N/C
E35| GND| F35| N/C| G35| GND| H35| N/C
E36| N/C| F36| N/C| G36| N/C| H36| N/C
E37| N/C| F37| GND| G37| N/C| H37| N/C
E38| GND| F38| N/C| G38| GND| H38| N/C
E39| N/C| F39| N/C| G39| N/C| H39| N/C
E40| N/C| F40| GND| G40| N/C| H40| N/C
E41| GND| F41| N/C| G41| GND| H41| N/C
---|---|---|---|---|---|---|---
E42| N/C| F42| N/C| G42| N/C| H42| N/C
E43| N/C| F43| GND| G43| N/C| H43| GND
E44| GND| F44| PEG_RX0_DN| G44| GND| H44| PEG_TX8_DN
E45| PEG_TX0_DN| F45| PEG_RX0_DP| G45| PEG_RX8_DN| H45| PEG_TX8_DP
E46| PEG_TX0_DP| F46| GND| G46| PEG_RX8_DP| H46| GND
E47| GND| F47| PEG_RX1_DN| G47| GND| H47| PEG_TX9_DN
E48| PEG_TX1_DN| F48| PEG_RX1_DP| G48| PEG_RX9_DN| H48| PEG_TX9_DP
E49| PEG_TX1_DP| F49| GND| G49| PEG_RX9_DP| H49| GND
E50| GND| F50| PEG_RX2_DN| G50| GND| H50| PEG_TX10_DN
E51| PEG_TX2_DN| F51| PEG_RX2_DP| G51| PEG_RX10_DN| H51| PEG_TX10_DP
E52| PEG_TX2_DP| F52| GND| G52| PEG_RX10_DP| H52| GND
E53| GND| F53| PEG_RX3_DN| G53| GND| H53| PEG_TX11_DN
E54| PEG_TX3_DN| F54| PEG_RX3_DP| G54| PEG_RX11_DN| H54| PEG_TX11_DP
E55| PEG_TX3_DP| F55| GND| G55| PEG_RX11_DP| H55| GND
E56| GND| F56| PEG_RX4_DN| G56| GND| H56| PEG_TX12_DN
E57| PEG_TX4_DN| F57| PEG_RX4_DP| G57| PEG_RX12_DN| H57| PEG_TX12_DP
E58| PEG_TX4_DP| F58| GND| G58| PEG_RX12_DP| H58| GND
E59| GND| F59| PEG_RX5_DN| G59| GND| H59| PEG_TX13_DN
E60| PEG_TX5_DN| F60| PEG_RX5_DP| G60| PEG_RX13_DN| H60| PEG_TX13_DP
E61| PEG_TX5_DP| F61| GND| G61| PEG_RX13_DP| H61| GND
E62| GND| F62| PEG_RX6_DN| G62| GND| H62| PEG_TX14_DN
E63| PEG_TX6_DN| F63| PEG_RX6_DP| G63| PEG_RX14_DN| H63| PEG_TX14_DP
E64| PEG_TX6_DP| F64| GND| G64| PEG_RX14_DP| H64| GND
E65| GND| F65| PEG_RX7_DN| G65| GND| H65| PEG_TX15_DN
E66| PEG_TX7_DN| F66| PEG_RX7_DP| G66| PEG_RX15_DN| H66| PEG_TX15_DP
E67| PEG_TX7_DP| F67| GND| G67| PEG_RX15_DP| H67| GND
---|---|---|---|---|---|---|---
E68| GND| F68| N/C| G68| GND| H68| N/C
E69| N/C| F69| N/C| G69| N/C| H69| N/C
E70| N/C| F70| GND| G70| N/C| H70| GND
E71| N/C| F71| L2_MDI0_N| G71| GND| H71| N/C
E72| N/C| F72| L2_MDI0_P| G72| N/C| H72| N/C
E73| N/C| F73| GND| G73| N/C| H73| GND
E74| N/C| F74| L2_MDI1_N| G74| GND| H74| N/C
E75| N/C| F75| L2_MDI1_P| G75| N/C| H75| N/C
E76| N/C| F76| GND| G76| N/C| H76| GND
E77| N/C| F77| L2_MDI2_N| G77| GND| H77| N/C
E78| N/C| F78| L2_MDI2_P| G78| N/C| H78| N/C
E79| L2_SDP| F79| GND| G79| N/C| H79| GND
E80| L2_LED_1000_N| F80| L2_MDI3_N| G80| GND| H80| N/C
E81| L2_LED_LINK_N/ACT_N| F81| L2_MDI3_P| G81| N/C| H81| N/C
E82| L2_LED_2500_N| F82| GND| G82| N/C| H82| GND
E83| GND| F83| N/C| G83| GND| H83| N/C
E84| N/C| F84| N/C| G84| N/C| H84| N/C
E85| N/C| F85| N/C| G85| N/C| H85| GND
E86| GND| F86| N/C| G86| GND| H86| N/C
E87| N/C| F87| N/C| G87| N/C| H87| N/C
E88| N/C| F88| GND| G88| N/C| H88| N/C
E89| GND| F89| N/C| G89| N/C| H89| N/C
E90| N/C| F90| N/C| G90| N/C| H90| N/C
E91| N/C| F91| GND| G91| N/C| H91| GND
E92| GND| F92| CLK_PCIE3_DN_BF| G92| GND| H92| N/C
E93| CLK_PCIE2_DN_BF| F93| CLK_PCIE3_DP_BF| G93| N/C| H93| N/C
---|---|---|---|---|---|---|---
E94| CLK_PCIE2_DP_BF| F94| GND| G94| N/C| H94| GND
E95| GND| F95| N/C| G95| GND| H95| N/C
E96| SRCCLKREQ2_BF_N| F96| N/C| G96| N/C| H96| N/C
E97| SRCCLKREQ3_BF_N| F97| N/C| G97| N/C| H97| GND
E98| N/C| F98| N/C| G98| N/C| H98| N/C
E99| N/C| F99| N/C| G99| N/C| H99| N/C
E100| N/C| F100| N/C| G100| N/C| H100| N/C

Table 5 Pin out description

Connectors and Features

Layout silkscreen
The connector layout picture below shows each connector and its name designator.

PCIe Connectors
The PCOM-C880 provides the following PCIe connectors:
➢ PCIe x16 Slots
J14 – #16 ~ #31 lanes
J13 – #32 ~ #47 lanes
➢ PCIe x4 Slots
J11 – #0 ~ #3 lanes
J12 – #4 ~ #7 lanes
➢ M.2 Slots
J80 – #8 ~ #11 lanes
J81 – #12 ~ #15 lanes
➢ PCIe x1 Slot
J99 – PCIe_BMC lanes

Display Interfaces
The PCOM-C880 provides total four DP connectors:
➢ Display Port ++
The PCOM-C880 provides three DP++ ports via DDI interface, 2x DP on connector J86 (Rear I/O side), 1x DP on connector J93 (internal)
➢ eDP
The PCOM-C880 connects the module’s eDP interface to an internal DisplayPort (J85) for eDP signal evaluation.

USB
The PCOM-C880 provides the following USB connectors:
➢ J95 – Dual Stacked USB 3.2 Gen2 Type-A Ports
➢ J100 – Dual Stacked USB 3.2 Gen2 Type-A Ports (Internal I/O design for functional evaluation)
➢ J8 – Dual Stacked USB 2.0 Type-A Ports
➢ J15 – Dual Stacked USB 2.0 Type-A Ports

SATA
The PCOM-C880 provides two standard SATA connectors:
➢ J5 – SATA port 0
➢ J7 – SATA port 1

Ethernet
The PCOM-C880 provides two RJ45 ethernet ports:
➢ J95 – Ethernet port 0
➢ J100 – Ethernet port 1

Audio
The PCOM-C880 features a multi-channel HDA codec (Realtek ALC888s).
The codec supports:
➢ MIC-In signals on connector J94 (lower jack)
➢ Line-in signals on connector J94 (upper jack)
➢ Line-out signal on connector J94 (middle jack) The PCOM-C880 provides two SoundWire header for evaluation
➢ J89 – SoundWire 1
➢ J90 – SoundWire 0

J89 SoundWire 1

J90 SoundWire 0

I2C / SMBUS
The PCOM-C880 provides two I2C and one SMBUS header:
➢ J18 / J19 – I2C
➢ J20 – SMBUS J18 I2C0

J19 I2C1

J20 SMB Bus

COM Ports
The PCOM-C880 provides two serial ports:
➢ Module Serial Port 0 – COM port 0 on connector J97
➢ Module Serial Port 1 – COM port 1 on connector J98 J97 COM Port 0

1|
---|---
2| RXD0#
3| TXD0#
4|
5| GND
6|
7| RTS0#
8| CTS0#
9|

J97 COM Port 0

1|
---|---
2| RXD0#
3| TXD0#
4|
5| GND
6|
7| RTS0#
8| CTS0#
9|

IMPI / Watch Dog
The PCOM-C880 provides two IMPI and one WDT header:
➢ J21 – IMPI I2C
➢ J27 – IMPI USB
➢ J26 – WDT J21 IPMI I2C

J27 IPMI USB

1|
---|---
2| USB0-_BMC
3| USB0+_BMC
4| GND
5| GND

J26 WDT

FAN
The PCOM-C880 provides two FAN header:
➢ J24 – 4 pin smart FAN support PWM control and RPM detection
➢ J25 – Normal FAN
➢ JP10 – Fan Voltage Selection
[1-2] 12v
[2-3] 5v GPIO (General Purpose Input Output)
The PCOM-C880 provides 12bits GPIO on header J22.
➢ J22

On carrier SPI socket (2nd boot BIOS)
The PCOM-C880 provides an 8-pin SOIC8 socket (U14) for an SPI flash, use SW11 to select the flash device to boot from.
➢ SW11

GP_SPI (General Purpose)
The PCOM-C880 provides an GP_SPI on header J91.
➢ J91

RTC Reset
The PCOM-C880 provides a holder BAT1 for attaching a CR2032 coin battery. The battery supplies power to the module RTC.
To disconnect the RTC battery, set jumper JP9 to position [2-3].
➢ JP9 – RTC reset
[1-2] Normal
[2-3] Reset eSPI connector
The PCOM-C880 provides eSPI signals on header J17.
➢ J17

MIPI-CSI adaptor
The PCOM-C880 provides a MIPI-CSI adaptor on connector J88(mini-PCIe form factor) for signal measurement purpose.
➢ J88

➢ JP12 – CSI Port Selection
[1-2] CSI port 0
[open] CSI port 1

Buttons and Others

Power button
When you press the power button SW10, it triggers the module’s PWRBTN# signal. The triggered event usually initiates a transition from one power state to another (for example, from S5 to S0). However, the system’s behavior depends on the ACPI settings of the operating system.
Reset button
When you press the reset button SW9, it triggers the module’s SYS_RESET# signal. However, this behavior depends on the module reset signal design.
Sleep button
When you press the sleep button SW8, it triggers the module’s SLEEP# signal. However, the system’s behavior depends on the ACPI settings of the operating system. Lid button
When you press the lid button SW7, it triggers the module’s LID# signal. However, the system’s behavior depends on the ACPI settings of the operating system.
Rapid shutdown button
When you press the rapid shutdown button SW1, it triggers the module’s RAPID_SHUTDOWN# signal. However, this behavior depends on the module rapid shutdown signal design. Post code (80 port)
PCOM-C880 provides two 7-segment displays for post code or debug information. Reserved Jumpers and Headers
The following jumpers and headers are reserved for Portwell internal debug only.
➢ JP5
➢ JP6
➢ JP7
➢ JP8
➢ JP13
➢ JP14
➢ J23
➢ J101

Packaging Information

PCOM-C880’s packaging specification will follow the Portwell standard style.

Industry Specifications

The list below provides links to industry specifications that apply to PORTWELL modules.
Low Pin Count Interface Specification https://www.intel.com/content/www/us/en/design/technologies-and-topics/low- pin-count-interface- specification.html
Universal Serial Bus (USB) Specification, Revision 2.0 https://www.usb.org/
PCI Express Base Specification, Revision 5.0 https://pcisig.com/specifications
Serial ATA Specification, Revision 3.0 https://sata-io.org/
PICMG® COM-HPC® Overview https://www.picmg.org/openstandards/com-hpc/

Copyright©
PORTWELL 2021
PCOM-C880 User’s Guide

Documents / Resources

| PORTWELL PCOM-C880 Evaluation Carrier Board [pdf] User Guide
PCOM-C880 Evaluation Carrier Board, PCOM-C880, Evaluation Carrier Board, Carrier Board, Board
---|---

References

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