LSI Logic Confidential
AC Timing
18-17
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
Table 18.8
I-Mode Read AC Timing Parameters
1
Symbol
Description
Timing Value
Min
Max
T
1
H_ADDR[2:0] input setup with respect to RD falling.
3.0 ns
–
T
2
H_ADDR[2:0] input hold time with respect to RD falling.
2.0 ns
–
T
3
H_WAIT output delay time with respect to RD falling.
–
3 14 ns
T
4
H_WAIT assertion period.
2 cycles
–
T
5
H_DTACK output delay time with respect to RD falling.
–
3 14 ns
T
6
H_DTACK assertion period.
2 cycles
–
T
7
Delay from H_WAIT rising to data valid.
–
1 cycle
T
8
Delay from RD rising to data float.
2 cycles
–
T
9
Output delay from RD rising to H_WAIT 3-stated.
2 cycles
3 cycles
T
10
Output delay from RD rising to H_DTACK 3-stated.
2 cycles
3 cycles
T
11
RD holdtime with respect to H_WAIT rising.
2.0 ns
–
T
12
RD holdtime with respect to H_DTACK falling.
2.0 ns
–
1. H_WAIT and H_DTACK are pulled up by an internal pull-up on 3-state.