Intel 945G - Bulk Single Unit Atx Exp User Manual page 43

4.2.2.2 PCI Express* x16 / MEC Slot
The PCI Express x16 slot is following the industry PCI Express x16 connector standard.
Table 17 shows the signals for PCI Express x16 or MEC (sDVO).
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Table 17 Intel sDVO to PCI Express* Connector Mapping for MEC Cards
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Reference #308823
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Intel 945G Express Chipset Development Kit User's Manual
Side B
PCI Express sDVO/MEC
Function
12 V 12 V
12 V 12 V
RSVD RSVD
GND GND
SMCLK NC
SMDAT NC
GND GND
3.3 V 3.3 V
JTAG1 (TRST#) NC
3.3 V 3.3 V
AUX
WAKE# WAKE#
RSVD RSVD
GND GND
PET0+ (or PETp0) PET0+ (or PETp0)
PET0- (or PETn0) PET0- (or PETn0)
GND GND
PRSNT2# sDVO_CtrlClk
GND GND
End of x1 Connector
PET1+ (or PETp1) NC
PET1- (or PETn1) NC
GND GND
GND GND
PET2+ (or PETp2) NC
PET2- (or PETn2) NC
GND GND
GND GND
PET3+ (or PETp3) NC
PET3- (or PETn3) NC
GND GND
Hardware References
PCI Express
Function Function
PRSNT1#
12V
12V
GND
JTAG2 (TCK)
JTAG3 (TDI)
JTAG4 (TDO)
JTAG5 (TMS)
3.3 V
3.3 V
AUX
PERST#
Key
GND
REFCLK+
REFCLK-
GND
PER0+ (or PERp0)
PER0- (or PERn0)
GND
RSVD
GND
PER1+ (or PERp1)
PER1- (or PERn1)
GND
GND
PER2+ (or PERp2)
PER2- (or PERn2)
GND
GND
PER3+ (or PERp3)
Side A
sDVO/MEC
Function
NC
12V
12V
GND
NC
JTAG3 (TDI)
JTAG4 (TDO)
NC
3.3 V
3.3 V
PERST#
GND
REFCLK+
REFCLK-
GND
PER0+ (or PERp0)
PER0- (or PERn0)
GND
RSVD
GND
NC
NC
GND
GND
NC
NC
GND
GND
NC
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