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PCI
The following figure shows the timing with internal clock.
Serial CLK (Output)
t HIIVKH
t HIIXKH
Input Signals:
(See Note)
t HIKHOV
Output Signals:
(See Note)
Note: The clock edge is selectable.
t HIKHOX
Figure 24. AC timing (internal clock) diagram
11 PCI
This section describes the DC and AC electrical specifications for the PCI bus of the MPC8309.
11.1
PCI DC electrical characteristics
Table 32 provides the DC electrical characteristics for the PCI interface of the MPC8309.
Table 32. PCI DC electrical characteristics 1,2
Parameter
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
Input current
Symbol
V IH
V IL
V OH
V OL
I IN
Test Condition
V OUT ≥ V OH (min) or
V OUT ≤ V OL (max)
OV DD = min,
I OH = –100 μ A
OV DD = min,
I OL = 100 μ A
0 V ≤ V IN ≤ OV DD
Min
2
–0.3
OV DD – 0.2
—
—
Max
OV DD + 0.3
0.8
—
0.2
±5
Unit
V
V
V
V
μ A
Notes:
1. Note that the symbol V IN , in this case, represents the OV IN symbol referenced in Table 1 and Table 2 .
2. Ranges listed do not meet the full range of the DC specifications of the PCI 2.3 Local Bus Specifications.
11.2
PCI AC electrical specifications
This section describes the general AC timing parameters of the PCI bus of the MPC8309. Note that the
PCI_CLK or PCI_SYNC_IN signal is used as the PCI input clock depending on whether the MPC8309 is
configured as a host or agent device. Table 33 shows the PCI AC timing specifications at 66 MHz.
.
Table 34 shows the PCI AC timing specifications at 33 MHz.
MPC8309 PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 3
34
Freescale Semiconductor
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