Cirrus Logic CS61880 User Manual
Page 61
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CS61880
DS450PP3
61
19.11 Switching Characteristics - Parallel Port (Multiplexed Mode)
Parameter
Ref. #
Min.
Typ.
Max
Unit
Pulse Width AS or ALE High
1
25
-
-
ns
Muxed Address Setup Time to AS or ALE Low
2
10
-
-
ns
Muxed Address Hold Time
3
5
-
-
ns
Delay Time AS or ALE to WR, RD or DS
4
5
-
-
ns
CS & R/W Setup Time Before WR, RD or DS Low
5
0
-
-
ns
CS & R/W Hold Time
6
0
-
-
ns
Pulse Width, WR, RD, or DS
7
70
-
-
ns
Write Data Setup Time
8
30
-
-
ns
Write Data Hold Time
9
30
-
-
ns
Output Data Delay Time from RD or DS Low
10
-
-
100
ns
Read Data Hold Time
11
5
-
-
ns
Delay Time WR, RD, or DS to ALE or AS Rise
12
30
-
-
ns
WR or RD Low to RDY Low
13
-
-
55
ns
WR or RD Low to RDY High
14
-
-
100
ns
WR or RD High to RDY HIGH-Z
15
-
-
40
ns
DS Low to ACK High
16
-
-
65
ns
DS Low to ACK Low
17
-
-
100
ns
DS High to ACK HIGH-Z
18
-
-
40
ns
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