User Guide • PC1-GROOVE • Core
TM
i7
CompactPCI
®
CPU Board
Internal Connectors
Expansion Interface Header J-EXP
J-EXPT (J-EXPB optinal)
GND
1
2
+3.3V
1)
PCI_CLK (33MHz)
3
4
PLTRST#
LPC_AD0
5
6
LPC_AD1
LPC_AD2
7
8
LPC_AD3
LPC_FRM#
9
10
LPC_DRQ#
GND
11
12
+3.3V
1)
SERIRQ
13
14
EXP_PME#
EXP_SMI#
15
16
SIO_CLK (14.3MHz)
FWH_ID0 17
18
FWH_INIT#
PCH_RCIN#
19
20
PCH_A20GATE
GND
21
22
+5V
1)
USB_EXP_P2-
23
24
USB_EXP_P1-
USB
25
26
USB
USB_EXP_OC#
27
28
H_DBRESET#
EXP_SCL
2)
29
30
EXP_SDA
2)
GND
31
32
+5V
1)
HDA_SDOUT
33
34
HDA_SDIN0
HDA_RST#/CL_RST#
3)
35
36
HDA_SYNC
HDA_BITCLK/CL_CLK
3)
37
38
HDA_SDIN1/CL_DATA
3)
SPEAKER
39
40
+12V
4)
1)
Power rail switched on in state S0 only.
2)
Connected to SMBus via switch, isolated after PCI reset.
3)
Stuffing option, default is the HDA option.
4)
Unswitched power rail (switched on always).
The expansion interface header footprint is available on both sides of the board, top (J-EXPT) and
bottom (J-EXPB). Nevertheless the bottom side connector is stuffed only on customers request.
WARNING: Neither the +3.3V pin, nor the +5V pin, nor the +12V pin are protected against a short
circuit situation! This connector therefore should be used only for attachment of an expansion board.
The maximum current flowing across these pins should be limited to 2A per power rail.
2
1
1.27mm
Socket
40
© EKF
276.53.
040.
01
e
kf
.co
m
© EKF -63- ekf.com
