mpc855t Freescale Semiconductor, Inc, mpc855t Datasheet - Page 45

• Manufacturer Part Number: mpc855t
• Description: Mpc855t Powerquicc Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

11.2
Table 15
1
Figure 44
11.3
Table 16
Freescale Semiconductor
Num
Num
External bus frequency of greater than or equal to 33.34 MHz.
35
36
40
41
Port C interrupt pulse width low (edge-triggered mode)
Port C interrupt minimum time between active edges
DREQ setup time to clock high
DREQ hold time from clock high
provides the timings for port C interrupts.
provides the IDMA controller timings as shown in
DATA-OUT
Port C Interrupt AC Electrical Specifications
IDMA Controller AC Electrical Specifications
shows the port C interrupt detection timing.
DATA-IN
(Input)
Port C
CLKO
MPC860 PowerQUICC™ Family Hardware Specifications, Rev. 8
Figure 43. Parallel I/O Data-In/Data-Out Timing Diagram
Figure 44. Port C Interrupt Detection Timing
Characteristic
Characteristic
Table 16. IDMA Controller Timing
Table 15. Port C Interrupt Timing
35
29
31
Figure 45
through
30
36
Min
All Frequencies
Figure
7
3
Min
55
55
CPM Electrical Characteristics
≥ 33.34 MHz
48.
Max
Max
—
—
—
—
1
Unit
Unit
ns
ns
ns
ns
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