Technical Reference
59
✏
NOTE
PCI bus connector 1 does not physically support full-length PCI add-in boards. Use only normal-
length (or smaller) PCI add-in boards in PCI bus connector 1.
Table 36. CNR Connector (J3A1)
Pin Signal
Name
Pin Signal
Name
A1 Reserved
B1 Reserved
A2 Reserved
B2 Reserved
A3 Ground
B3 Reserved
A4 Reserved
B4 Ground
A5 Reserved
B5 Reserved
A6 Ground
B6 Reserved
A7 LAN_TXD2
B7 Ground
A8 LAN_TXD0
B8 LAN_TXD1
A9 Ground
B9 LAN_RSTSYNC
A10 LAN_CLK
B10 Ground
A11
LAN_RXD1 B11
LAN_RXD2
A12 Reserved
B12 LAN_RXD0
A13 USB+
B13 Ground
A14 Ground
B14 Reserved
A15 USB-
B15 +5V
(dual)
A16
+12V B16
USB_OC
A17 Ground
B17 Ground
A18 +3.3V
(dual)
B18 -12V
A19
+5VD B19
+3.3V
A20 Ground
B20 Ground
A21 EEDI
B21 EED0
A22 EECS
B22 EECK
A23 SMB_A1
B23 Ground
A24
SMB_A2 B24
SMB_A0
A25 SMB_SDA
B25 SMB_SCL
A26 AC97_RESET
B26 CDC_DWN_ENAB
A27 Reserved
B27 Ground
A28 AC97_SDATA_IN1
B28 AC97_SYNC
A29 AC97_SDATA_IN0
B29 AC97_SDATA_OUT
A30 Ground
B30 AC97_BITCLK
For information about
Refer to
The CNR
Section 1.11, page 32