Hardware | |
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4.2PCI Slots
Four
The signal assignment for slot 0, slot 1, slot 2 and slot 3 is defined in the COM Express specification.
INTA#, INTB#, INTC# and INTD#
REQ[0..3]#
GNT[0..3]#
IDSEL
PCI Slot | Reference |
PCI Slot 0 | X2 |
PCI Slot 1 | X3 |
PCI Slot 2 | X4 |
PCI Slot 3 | X5 |
Table 3 Assignment PCI slot to connector reference
Specification:
References: X2 - X5
Connector: | AMP / Tyco |
Pinout: Refer to PCI specification V2.1 [3]
Pin | Signal |
| Pin | Signal |
A1 | TRST# |
| B1 | |
A2 | 12V |
| B2 | TCK |
A3 | TMS |
| B3 | GND |
A4 | TDI |
| B4 | TDO |
A5 | 5V |
| B5 | 5V |
A6 | INTA# |
| B6 | 5V |
A7 | INTC# |
| B7 | INTB# |
A8 | 5V |
| B8 | INTD# |
A9 | RSVD |
| B9 | PRSNT1# |
A10 | 5V |
| B10 | RSVD |
A11 | RSVD |
| B11 | PRSNT2# |
A12 | GND |
| B12 | GND |
A13 | GND |
| B13 | GND |
A14 | 3V3 |
| B14 | RSVD |
A15 | RST# |
| B15 | GND |
A16 | 5V |
| B16 | CLK |
A17 | GNT# |
| B17 | GND |
A18 | GND |
| B18 | REQ# |
A19 | PME# |
| B19 | 5V |
A20 | AD30 |
| B20 | AD31 |
A21 | 3V3 |
| B21 | AD29 |
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