5 pci and external memory interface timing, Pci and external memory interface timing – Avago Technologies LSI53C825AE User Manual

Page 272

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6-44

Specifications

6.5 PCI and External Memory Interface Timing

Table 6.19

lists the LSI53C825A PCI and External Memory Interface

timing data.

Table 6.19

LSI53C825A PCI and External Memory Interface Timing

Symbol

Parameter

Min

Max

Unit

t

1

Shared signal input setup time

7

ns

t

2

Shared signal input hold time

0

ns

t

3

CLK to shared signal output valid

11

ns

t

4

Side signal input setup time

10

ns

t

5

Side signal input hold time

0

ns

t

6

CLK to side signal output valid

12

ns

t

7

CLK high to FETCH/ low

20

ns

t

8

CLK high to FETCH/ high

20

ns

t

9

CLK high to MASTER/ low

20

ns

t

10

CLK high to MASTER/ high

20

ns

t

11

Address setup to MAS/ high

25

ns

t

12

Address hold from MAS/ high

15

ns

t

13

MAS/ pulse width

25

ns

t

14f

MCE/ low to data clocked in (fast memory)

160

ns

t

14s

MCE/ low to data clocked in (slow memory)

220

ns

t

15f

Address valid to data clocked in (fast memory)

205

ns

t

15s

Address valid to data clocked in (slow memory)

265

ns

t

16f

MOE/ low to data clocked in (fast memory)

100

ns

t

16s

MOE/ low to data clocked in (slow memory)

160

ns

t

17

Data hold from address, MOE/, MCE/ change

0

ns

t

18

Next address out from MOE/, MCE/ high

50

ns

t

19

Data setup to CLK high

5

ns

t

20

Data setup to MWE/ low

30

ns

t

21

Data hold from MWE/ high

20

ns

t

25

MCE/ low to MWE/ low

25

ns

t

26

MWE/ high to MCE/ high

25

ns

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