參數(shù)資料
型號(hào)： XPC855TZP50
英文描述： Controller Miscellaneous - Datasheet Reference
中文描述： 控制器雜項(xiàng)-數(shù)據(jù)表參考
文件頁(yè)數(shù)： 44/76頁(yè)
文件大?。?/td> 825K
代理商： XPC855TZP50
44
MPC850 (Rev. A/B/C) Hardware Specifications
MOTOROLA
PIO AC Electrical Specifications
8.1
PIO AC Electrical Specifications
Table 8-13 provides the parallel I/O timings for the MPC850 as shown in Figure 8-38.
Table 8-13. Parallel I/O Timing
Figure 8-38. Parallel I/O Data-In/Data-Out Timing Diagram
8.2
IDMA Controller AC Electrical Specifications
Table 8-14 provides the IDMA controller timings as shown in Figure 8-39 to Figure 8-42.
Num
Characteristic
All Frequencies
Unit
Min
Max
29
Data-in setup time to clock high
15
—
ns
30
Data-in hold time from clock high
7.5
—
ns
31
Clock low to data-out valid (CPU writes data, control, or direction)
—
25
ns
Table 8-14. IDMA Controller Timing
Num
Characteristic
All Frequencies
Unit
Min
Max
40
DREQ setup time to clock high
7.00
—
ns
41
DREQ hold time from clock high
3.00
—
ns
42
SDACK assertion delay from clock high
—
12.00
ns
43
SDACK negation delay from clock low
—
12.00
ns
44
SDACK negation delay from TA low
—
20.00
ns
45
SDACK negation delay from clock high
—
15.00
ns
46
TA assertion to falling edge of the clock setup time (applies to external TA)
7.00
—
ns
CLKOUT
DATA-IN
29
31
30
DATA-OUT
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