Congatec SMARC conga-SMC1, Руководство пользователя

Страница: 42 / 50

Copyright © 2020 congatec AG SMC1m10 42/50
4.13 I²C Bus/SM Bus Header
The conga-SMC1 provides header X30 for I²C/SM bus signals. All I/O signals have 1.8 V level. The 3.3 V is provided through a 500 mA resetable fuse.
Table 27 X30 Pinout Description
Pin Signal Description
1 N.C Not connected
2 I2C_GP_DAT General purpose I2C data
3 GND Ground reference
4 I2C_GP_CK General purpose I2C clock output
5 +3.3 V +3.3 V runtime power output with 500 mA fuse
6 SMB_ALERT_1V8# SMBus Alert signal from external device. Should be driven by open drain/collector output
7 I2C_PM_DAT/SMB_DAT Power management I2C data or SM bus data on x86 variant
8 GND Ground reference
9 I2C_PM_CK/SMB_CLK Power management I2C clock output or SM bus clock output on x86 variant
10 + 3.3 V +3.3 V power output with 500 mA (standby)
Note
Use pin 5 (runtime power) for I2C devices and pin 10 (standby power) for I2C_PM/SMBus devices.
Connector Type
X30: 10-pin, 1.25 mm pitch picoblade header (Molex 0533981071)
Possible Mating Connector: Molex 0510211000
4.14 eSPI/SPI1 Header
The conga-SMC1 provides eSPI/SPI signals on connector CN1 for general purpose SPI add-on modules. All I/O signals have 1.8 V level.
Table 28 CN1 Pinout Description
Pin Signal Description Pin Signal Description
1 GND Ground 2 ESPI_CS0# ESPI master chip select output for first eSPI device
3 ESPI_CK ESPI master clock output 4 ESPI_IO3 ESPI master data input/output 3
5 Empty 6 ESPI_IO2 ESPI master data input/output 2
7 ESPI_RESET# ESPI reset output 8 ESPI_IO1 ESPI master data input/output 1
Master input, slave output in single I/O mode
X30
CN1
Pin 1
Pin 2