IEI Integration PICOe-PV-D4251_N4551_D5251 v1.00 - Manual (Page 43)

PICOe-PV-D4251/N4551/D5251 User Manual
Page 29
3.2.15 SMBus Connector
CN Label: CN1
CN Type: 4-pin wafer (1x4)
CN Location: See Figure 3-17
CN Pinouts: See Table 3-17
The SMBus Connector provides a connection to a SMBus (System Management Bus)
device.
Figure 3-17: SMBus Connector Locations
Pin Description
1 GND
2 SMBDATA
3 SMBCLK
4 VCC5S
Table 3-17: SMBus Connector Pinouts
3.2.16 SPI Flash Connector
CN Label: SPI1
CN Type: 8-pin header (2x3)
CN Location: See Figure 3-18
CN Pinouts: See Table 3-18
The 8-pin SPI Flash connector is used to flash the BIOS.