Kbyte Rom Write Cycle - LSI LSI53C875A Technical Manual

= 64 Kbyte ROM Write Cycle

Table 6.36
Symbol Parameter
t Address setup to MAS/ HIGH
11
t Address hold from MAS/ HIGH
12
t MAS/ pulse width
13
t Data setup to MWE/ LOW
20
t Data hold from MWE/ HIGH
21
t MWE/ pulse width
22
t Address setup to MWE/ LOW
23
t MCE/ LOW to MWE/ HIGH
24
t MCE/ LOW to MWE/ LOW
25
t MWE/ HIGH to MCE/ HIGH
26
Figure 6.32 64 Kbyte ROM Write Cycle
CLK
MAD
(Driven by LSI53C875A)
MAS1/
(Driven by LSI53C875A)
MAS0/
(Driven by LSI53C875A)
MCE/
(Driven by LSI53C875A)
MOE/
(Driven by LSI53C875A)
MWE/
(Driven by LSI53C875A)
Higher Lower
Address Address
t
12
t
11
t
13
PCI and External Memory Interface Timing Diagrams
Valid Write Data
t
24
t
25
t
20
t t
23 22
Min Max
25 –
15 –
25 –
30 –
20 –
100 –
60 –
120 –
25 –
25 –
t
26
t
21
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
6-51