20
6.1.21
SMBus Connector
(SMBUS_1: 4-pin wafer)
The SMBus (System Management Bus) connector provides low-speed system management
communications.
Pin
Description
1
+5V_DUAL
2
SMBCLK
3
SMBDATA
4
GND
6.1.22
SPDIF Connector
(SPDIF1: 5-pin header)
Use the SPDIF connector to connect digital audio devices to the system.
Pin
Description
1
+5V
2
NC
3
SPDIFOUT
4
GND
5
SPDIFIN
6.1.23
SPI ROM Connector
(JSPI1:
8-pin header)
The SPI connector is used to flash the BIOS.
Pin
Description
Pin
Description
1
+3.3V
2
GND
3
SPI_CS0
4
SPI_CLK
5
SPI_SO0
6
SPI_SI
7
NC
8
NC
