MA31751 Datasheet, PDF (9/17 Pages) Dynex Semiconductor – Memory Management & Block Protection Unit

6.0 TIMING PARAMETERS
Parameter
1 DSN falling to data bus active (XIO Read)
2 DSN falling to data from MMU valid (XIO Read)
3 Data valid after DSN rising (XIO Read)
4 Data bus inactive after DSN rising (XIO Read)
5 Address and control setups to ASIN rising
6 Address and control hold after ASIN falling
7 CSN setup to DSN rising (1750B) (XIO)
8 CSN hold after DSN rising (1750B) (XIO)
9 Data hold after DSN rising (XIO Write)
10 Data setup to DSN rising (XIO Write)
11 ASIN falling to EAS falling
12 Extended address valid to EAS rising
13 ASIN rising to EA bus valid (MMU cache hit)
14 EA bus valid to PRPEN active
15 ASIN rising to EA bus valid (MMU cache miss)
16 ASIN rising to MPROEN active (MMU cache hit)
17 ASIN rising to MPROEN active (MMU cache miss)
18 ASIN rising to MPROEN active (2 cache hits)
19 ASIN rising to MPROEN active (1 miss, 1 cache hit)
20 ASIN rising to MPROEN active (No MMU, BPU miss)
21 ASIN rising to MPROEN active (MMU and BPU miss)
22 MPROEN setup to BPUVALIDN falling
23 ASIN rising to GLPE falling
24 RESETN falling to GLPE/MPROEN/PRPEN rising
25 MPROEN valid after ASIN falling
26 ASIN rising to EAS rising (XIO Cycles)
27 DMAKN setup to ASIN rising
28 DMAKN hold after ASIN falling
29 PS[0:3] to MPROEN valid
30 PRPEN hold after ASIN falling
Mil-Std-883, method 5005, subgroups 9, 10 and 11
Figure 10: Timing Parameters
Min
Max Units
-
40
ns
-
90
ns
10
-
ns
-
45
ns
15
-
ns
5
-
ns
75
-
ns
0
-
ns
10
-
ns
5
-
ns
-
30
ns
5
30
ns
-
40
ns
5
15
ns
-
80
ns
-
60
ns
-
105
ns
-
60
ns
-
105
ns
-
50
ns
-
185
ns
5
-
ns
-
-
ns
-
-
ns
5
-
ns
-
15
ns
10
-
ns
0
-
ns
5
40
ns
10
-
ns
MA31751
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