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MPC8540 Datasheet(PDF) 908 Page - Freescale Semiconductor, Inc

Part # MPC8540
Description  MPC8540 PowerQUICC III??Integrated Host Processor Reference Manual
PDF  1302 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC8540 Datasheet(HTML) 908 Page - Freescale Semiconductor, Inc

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MPC8540 PowerQUICC III Integrated Host Processor Reference Manual, Rev. 1
16-86
Freescale Semiconductor
PCI/PCI-X Bus Interface
Figure 16-70. Burst Memory Write Transaction
Figure 16-71 shows a memory read block transaction. Signals preceded by “s1_” indicate a signal
that is internal to the device after the signal has been sampled. Note that there are no target initial
wait states for this example.
Data Transfer
Target’s View of the PCI Bus
s1_FRAME
s1_AD
s1_C/BE
s1_IRDY
PCI_TRDY
PCI_DEVSEL
ADDR ATTR
DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7
ATTR
BE0
BE1
BE2
BE3
BE4
BE5
BE6
BE7
PCI Bus
PCI_CLK
PCI_FRAME
PCI_AD
PCI_C/BE
PCI_IRDY
PCI_TRDY
1
2
34
5
6
78
9
10
11
12
13
14
PCI_DEVSEL
15
ADDR ATTR
DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7
ATTR
BE0
BE1
BE2
BE3
BE4
BE5
BE6
BE7
CMD
Decode
Speed A
Bus Transaction
Initiator Signals Termination
2 Clocks Before End of Transaction
Initiator’s View of the PCI Bus
PCI_FRAME
PCI_AD
PCI_C/BE
PCI_IRDY
s1_TRDY
s1_DEVSEL
ADDR ATTR
DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7
ATTR
BE0
BE1
BE2
BE3
BE4
BE5
BE6
BE7
CMD
CMD



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