CS61880
19.12 Switching Characteristics- Parallel Port (Non-Multiplexed Mode)
Parameter
Address Setup Time to WR, RD or DS Low
Address Hold Time
CS & R/W Setup Time Before WR, RD or DS Low
CS & R/W Hold Time
Pulse Width, WR, RD, or DS
Write Data Setup Time
Write Data Hold Time
Output Data Delay Time from RD or DS
Read Data Hold Time
WR or RD Low to RDY Low
WR, RD or DS Low to RDY High
WR, RD or DS High to RDY HIGH-Z
DS Low to ACK High
DS Low to ACK Low
DS High to ACK HIGH-Z
Ref. #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Min.
10
5
0
0
70
30
30
-
5
-
-
-
-
-
-
Typ.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max
Unit
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
-
ns
70
ns
-
ns
20
ns
70
ns
40
ns
20
ns
70
ns
40
ns
64
DS450PP2