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MPC8280 Datasheet(PDF) 382 Page - Freescale Semiconductor, Inc

Part # MPC8280
Description  PowerQUICC??II Family Reference Manual
PDF  1386 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC8280 Datasheet(HTML) 382 Page - Freescale Semiconductor, Inc

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PCI Bridge
MPC8280 PowerQUICC II Family Reference Manual, Rev. 1
9-74
Freescale Semiconductor
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 Figure 9-68 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
21
0
Field
IPHP
—
Reset
0000_0000_0000_0000
R/W
R/W
R
Addr
0x104B0
Table 9-52. IPHPR Field 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
21
0
Field
IPTP
—
Reset
0000_0000_0000_0000
R/W
R/W
R
Addr
0x104B8



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