PCI Bridge
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
Freescale Semiconductor 9-73

Figure 9-67. Inbound Post_FIFO Head Pointer Register (IPHPR)

MFAs posted by PCI hosts are picked up by the local processor via the inbound post_FIFO tail pointer register, described in Figure9-68 and Table 9-53. The local processor is responsible for updating this register.

Figure 9-68. Inbound Post_FIFO Tail Pointer Register (IPTPR)

31 20 19 16
Field QBA IPHP
Reset 0000_0000_0000_0000
R/W R R/W
Addr 0x104B2
15 210
Field IPHP
Reset 0000_0000_0000_0000
R/W R/W R
Addr 0x104B0

Table9-52. IPHPR F ield Descriptions

Bits Name Description
31–20 QBA Queue base address. When read returns the contents of QBAR bits 31-20.
19–2 IPHP Inbound post_FIFO head pointer. Local memory offset of the head pointer of the inbound post list
FIFO.
1–0 Reserved, should be cleared.
31 20 19 16
Field QBA IPTP
Reset 0000_0000_0000_0000
R/W R R/W
Addr 0x104BA
15 210
Field IPTP
Reset 0000_0000_0000_0000
R/W R/W R
Addr 0x104B8