Smbus; Digital Audio; Lpc - CompuLab SBC-FITPC3 Reference Manual

5.4

SMBus

Table 8
Signal Name
SMBUS_P0_CLK
SMBUS_P0_DAT
SMBUS_P2_CLK
SMBUS_P2_DAT
SMBUS_THRM_CLK
SMBUS_THRM_DAT
SMBUS_ALERT#
5.5

Digital Audio

Table 9
Signal Name
HDA_ RST#
HDA_SYNC
HDA_CLK
HDA_SOUT
HDA_SIN1
HDA_SIN2
5.6

LPC

Table 10
Signal Name
LPC_LAD0
LPC_LAD1
LPC_LAD2
LPC_LAD3
LPC_CLK
LPC_LFRAME#
LPC_SER_IRQ
Revised December 2011
SMBus Interface Signals
Pin # Type
PX1-A14 I/OD
PX1-A15 I/OD
PX2-A39 I/OD
PX2-A40 I/OD
SMBus thermal
PX2-B39
I/O
PX2-B40 I/O
SMBus generic
PX1-A10 I/O
Digital Audio Interface Signals
Pin # Type
PX1-A16
O
PX1-A17 O
PX1-A18 O
PX1-A19 O
PX1-A20 I/O
PX1-A21 I/O
LPC Interface Signals
Pin # Type
PX1-A30 I/O
PX1-A31 I/O
PX1-A32 I/O
PX1-A33 I/O
PX1-B23 O
PX1-B24 O
PX1-B22 I/O
SBC-FITPC3
Description
SMBus-0
SMBus channel 0 clock
SMBus channel 0 data
SMBus-2
SMBus channel 2 clock
SMBus channel 2 data
APU temperature sensor SMBus clock
APU temperature sensor SMBus data
SMBus alert - this signal can be used to wake
the system or generate an SMI
Description
HD audio interface reset
HD audio sync signal to codec
HD audio interface bit clock
HD audio serial data output to codec
HD audio serial data input from a second
codec
HD audio serial data input from a third codec
Description
Multiplexed command / address / data bit 0
Multiplexed command / address / data bit 1
Multiplexed command / address / data bit 2
Multiplexed command / address / data bit 3
33MHz clock for LPC device
LPC bus frame
Serial IRQ
FACE MODULE interfaces
Notes
Notes
Notes
17