MPC8544COMEDEV Freescale Semiconductor, MPC8544COMEDEV Datasheet - Page 1025
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MPC8544COMEDEV
Manufacturer Part Number
MPC8544COMEDEV
Description
KIT DEV EXPRESS MPC8544COM
Manufacturer
Freescale Semiconductor
Type
MPUr
Datasheets
1.MPC8544VTALF.pdf
(117 pages)
2.MPC8544VTALF.pdf
(2 pages)
3.MPC8544VTALF.pdf
(1340 pages)
Specifications of MPC8544COMEDEV
Contents
Board
For Use With/related Products
MPC8544
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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17.3.2.18 PCI Bus Maximum Latency Register (MAX_LAT)
17.3.2.19 PCI Bus Function Register (PBFR)
The 2-byte PCI bus function register is used to determine how different features of the PCI interface in
bus 0 are configured. This register is in PCI configuration space at offset 0x44.
15–6
Freescale Semiconductor
Offset 0x3F
Reset
Bits Name
4–1
5
0
Offset 0x44
Reset
W
R
Bits Name
7–0 MAXLAT Specifies how often the device needs to gain access to the PCI bus (0x00 indicates that this PCI
W
ACL Agent configuration lock. Indicates to an external host whether the local processor is doing internal configuration
PAH PCI agent/host. Read-only. Indicates the reset value of the cfg_host_agt configuration signal.
R
—
—
* = Depends on the state of the reset configuration signals at reset
15
0
Reserved
and must be explicitly set and cleared by the local processor during this time. ACL is set during reset if the
cfg_cpu_boot configuration input selects the CPU as the configuration owner. (See
Configuration.”) This bit is only meaningful in agent mode.
0 PCI interface allows incoming PCI configuration cycles.
1 PCI interface retries all incoming PCI configuration cycles.
Reserved
0 PCI interface is in host mode
1 PCI interface is in agent mode
7
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
0
controller has no major requirements for the settings of latency timers.)
Table 17-44. PCI Bus Maximum Latency Register Field Description
Figure 17-45. PCI Bus Maximum Latency Register (MAX_LAT)
0
Table 17-45. PCI Bus Function Register Field Descriptions
0
Figure 17-46. PCI Bus Function Register
0
—
0
0
MAXLAT
All zeros
0
Description
Description
0
0
6
ACL
5
*
0
4
Section 4.4.3.7, “CPU Boot
0
3
—
0
2
Access: Read Only
PCI Bus Interface
Access: Mixed
0
1
0
PAH
17-41
0
*
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