參數(shù)資料
型號(hào): MA28140
廠商: Dynex Semiconductor Ltd.
英文描述: Packet Telecommand Decoder
中文描述: 包遙控解碼器
文件頁(yè)數(shù): 59/72頁(yè)
文件大?。?/td> 857K
代理商: MA28140
MA28140
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Table 19: Parallel MAP Interface Timings
Timing
Tp1
Tp2 (1)
Description
MAPDSR rising to PCSN falling
PCSN falling to PRDY rising
- for MAP word (1)
- for CLCW word
- for CPDU status word
- for AU and FAR status word (1)
PCSN high width
PCSN rising to PRDY falling
PBUS hold after PCSN rising
PBUS valid before PRDY
PCSN rising to MAPDSR falling
MAPDSR low pulse width
MAPADT high pulse width
PAD setup to PCSN falling
PAD hold after PCSN rising
MAPADT rising to MAPDSR falling
PCSN rising to PBUS tristate
PCSN falling to PBUS asserted
Min
0 ns
Typ
Max
2 Tck
17 Tck
5 Tck
7 Tck
13 Tck
Tp3
Tp4
Tp5
Tp6
Tp7
Tp8
Tp9 (2)
Tp10
Tp11
Tp12 (2)
Tp13
Tp14
Note (1): These timings are guaranteed when there is no request for the local bus through the BRQN input.
In addition when using slow memories, the local memory accesses may be delayed by using the LACK
input, two extra delays shall be added to Tp2.
Note (2): These timings are exact with a variance of -10ns to +10ns.
Tck
39 ns
0 ns
Tck
3 Tck
40 Tck
4 Tck
2 Tck
Tck
Tck
Tck
31 ns
55 ns
0 ns
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