IPC/RSL8xxx-XxxxE: user documentation
DOC/IPC_RSL8-E; V1.9
© Syslogic Datentechnik AG, Switzerland, http://www.syslogic.com
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3.3.16.
Expansion Bus Interface
The internal expansion bus interface of the S8 allows expansion with a range of I/O and
communications boards. The bus connector pinout is shown in Tab. 31. See paragraph 7.1 for
electrical specification.
Pin
Signal Name
Direction
Pin
Signal Name
Direction
A1
SATA_RX_P
input
B1
SATA_TX_P
output
A2
SATA_RX_N
input
B2
SATA_TX_N
output
A3
reserved
B3
USB_OC#
A4
I2C_DAT
bidirectional
B4
USB_DP
bidirectional
A5
I2C_CLK
output
B5
USB_DN
bidirectional
A6
reserved
B6
USB_PWRON
A7
PCIE_RX_P
input
B7
PCIE_TX_P
output
A8
PCIE_RX_N
innput
B8
PCIE_TX_N
output
A9
reserved
B9
reserved
A10
PCIE_WAKE# input
B10
PCIE_CLK_P
output
A11
PCIE_RST#
output
B11
PCIE_CLK_N
output
A12
reserved
B12
reserved
A13
SMB_DAT
bidirectional
B13
LPC_RST#
output
A14
SMB_CLK
output
B14
LPC_CLK
output
A15
SMB_ALRT#
input
B15
LPC_FRAME#
output
A16
LPC_AD1
bidirectional
B16
LPC_AD0
bidirectional
A17
LPC_AD3
bidirectional
B17
LPC_AD2
bidirectional
A18
SERIRQ
input
B18
LPC_LDRQ
input
A19
SUS_S5#
output
B19
SUS_S3#
output
A20
+5V
power, always on B20
+1.5V
power, always on
A21
+5V
power, always on B21
+1.5V
power, always on
A22
+5V
power, always on B22
+3.3V
power, always on
A23
+5V
power, always on B23
+3.3V
power, always on
A24
+5V
power, always on B24
+3.3V
power, always on
A25
+5V
power, always on B25
+3.3V
power, always on
Tab. 30 Expansion Bus Connector P51
