Freescale Semiconductor MPC8313E PowerQUICC II Pro Family Reference Manual page 554

Sequencer
11.1.1 Features
The I/O sequencer includes the following features:
• Switches transactions among its ports
• Contains 8 cache-line (32-byte) buffers to allow streaming of PCI transactions
• Performs address translation on outbound PCI transactions
Note that the number of CSB masters allowed to access to PCI outbound windows is restricted to no more
than four non-CPU masters or no more than two non-CPU plus the CPU. If this number is exceeded,
deadlock can occur on CSB arbitration.
11.2 External Signal Description
The I/O sequencer has no external signals.
11.3 Memory Map/Register Definition
Table 11-1 shows the I/O sequencer memory map.
Offset
0x00 POTAR0—PCI outbound translation address register 0
0x08 POBAR0—PCI outbound base address register 0
0x10 POCMR0—PCI outbound comparison mask register 0
0x18 POTAR1—PCI outbound translation address register 1
0x20 POBAR1—PCI outbound base address register 1
0x28 POCMR1—PCI outbound comparison mask register 1
0x30 POTAR2—PCI outbound translation address register 2
0x38 POBAR2—PCI outbound base address register 2
0x40 POCMR2—PCI outbound comparison mask register 2
0x48 POTAR3—PCI outbound translation address register 3
0x50 POBAR3—PCI outbound base address register 3
0x58 POCMR3—PCI outbound comparison mask register 3
0x60 POTAR4—PCI outbound translation address register 4
0x68 POBAR4—PCI outbound base address register 4
0x70 POCMR4—PCI outbound comparison mask register 4
0x78 POTAR5—PCI outbound translation address register 5
0x80 POBAR5—PCI outbound base address register 5
0x88 POCMR5—PCI outbound comparison mask register 5
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
11-2
Table 11-1. Sequencer Memory Map
Register Access Reset
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
R/W 0x0000_0000
Freescale Semiconductor
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