Design Checklist for PowerQUICC II Pro MPC8309 Processor

Functional Blocks
Signal
PCI_STOP I/O As needed +
2 k–10 k� to
OV DD
PCI_DEVSEL I/O As needed +
2 k–10 k� to
OV DD
PCI_IDSEL I PCI host:
Tie to GND
PCI agent:
One of
PCI_AD[31:0]
PCI_SERR I/O As needed +
2 k–10 k� to
OV DD
PCI_PERR I/O As needed +
2 k–10 k� to
OV DD
PCI_REQ0 I/O External
arbiter:
As needed
PCI_REQ[1]/
CPCI_HS_ES
Pin
Type
Internal
arbiter:
As needed +
2 k–10 k� to
OV DD
I External
arbiter:
As needed
Internal
arbiter:
As needed +
2 k–10 k� to
OV DD
PCI_REQ[2] I As needed +
2 k–10 k� to
OV DD
Table 10. PCI Bus Interface Pin Listing (continued)
If Used
Connection
If Not
Used
2 k–10 k�
to OV DD
2 k–10 k�
to OV DD
Tie to GND
using 4.7K
2 k–10 k�
to OV DD
2 k–10 k�
to OV DD
External
arbiter:
Open
Internal
arbiter:
2 k–10 k�
to OV DD
2 k–10 k�
to OV DD
2 k–10 k�
to OV DD
PCI specification requires a weak pullup.
PCI specification requires a weak pullup.
IDSEL must be connected to GND for host systems and to one
address line for agent systems. If the PCI port is not used, it must
be grounded.
PCI host is selected by
RCWH[PCIHOST] = 1.
PCI agent is selected by
RCWH[PCIHOST] = 0.
PCI specification requires a weak pullup.
PCI specification requires a weak pullup.
If an external arbiter is used, REQ0 becomes an output signal and
does not need to be terminated.
External arbiter selected by RCWH[PCIARB] = 0.
Internal arbiter selected by RCWH[PCIARB] = 1.
This pin is multiplexed with a CompactPCI Hot Swap function.
CompactPCI functionality selected when external arbiter is used.
External arbiter selected by RCWH[PCIARB] = 0.
Internal arbiter selected by RCWH[PCIARB] = 1.
Design Checklist for PowerQUICC II Pro MPC8309 Processor, Rev. 1
22 Freescale Semiconductor
Notes
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