PC4-PRESTO • CompactPCI
®
PlusIO • 4
th
Generation Intel
®
Core™-4xxx Processor
Expansion Interface P-EXP
P-EXP
GND
1
2
+3.3V
1)
PCI_CLK (33MHz)
3
4
RST_PLC#
LPC_AD0
5
6
LPC_AD1
LPC_AD2
7
8
LPC_AD3
LPC_FRM#
9
10
LPC_DRQ#
GND
11
12
+3.3V
1)
LPC_SERIRQ
13
14
WAKE#
EXP_SMI#
15
16
SIO_CLK (14.3MHz)
FWH_ID0
17
18
FWH_INIT#
KBRST#
19
20
A20GATE
GND
21
22
+5V
1)
USB_EXP2-
23
24
USB_EXP1-
U
25
26
U
USB_EXP_OC#
27
28
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_CLK/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 buffered switch, isolated after reset.
3)
Stuffing option, default is the HDA option.
4)
Power rail switch off in state S5.
WARNING: The +3.3V, +5V and +12V power pins are not protected against a short circuit event.
The connector P-EXP therefore should be used only for attachment of an approved expansion side
card. The maximum current flow across these pins should be limited to 1A per power pin.
2
1
1.27mm
Socket
40
© EKF
276.53.
040.
01
e
kf
.co
m
© EKF -80- ekf.com
