is42g32256 ETC-unknow, is42g32256 Datasheet - Page 25

• Manufacturer Part Number: is42g32256
• Description: 256k 16-mbit Synchronous Graphics
• Manufacturer: ETC-unknow

IS42G32256
Table 14. Function Truth Table
Integrated Silicon Solution, Inc.
ADVANCE INFORMATION SR037-0C
09/10/98
Current
Active
State
Read
IDLE
Row
CS CS CS CS CS RAS
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
RAS
RAS
RAS CAS
RAS
X
H
H
H
X
H
H
H
H
H
H
X
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
CAS
CAS WE
CAS
CAS
X
H
H
H
H
H
H
X
H
H
H
H
H
X
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
WE
WE
WE
WE
X _
L.
H
H
H
H
H
H
H
H
H
H
H
H
H
H
X
X
X
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
DSF
H
H
H
H
H
H
H
H
H
H
H
H
X
X
X
X
X
X
X
X
X
X
X
X
X
L
L
L
L
L
L
L
L
L
L
L
L
(A10)
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
OP Code
OP Code
OP Code
CA, AP
CA, AP
CA, AP
CA, AP
CA, AP
CA,AP
ADDR
CA
RA
RA
PA
RA
RA
RA
PA
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Action
NOP
NOP
ILLEGAL
ILLEGAL
Row Active; Latch Row Address; Non-I/O Mask
Row Active; Latch Row Address; I/O Mask
Auto Refresh or Self Refresh
NOP
Auto Refresh or Self Refresh
ILLEGAL
Mode Register Access
Special Mode Register Access
NOP
NOP
ILLEGAL
Begin Read; Latch CA; Determine AP
ILLEGAL
Begin Write; Latch CA; Determine AP
Begin Write; Latch CA; Determine AP
ILLEGAL
Precharge
ILLEGAL
ILLEGAL
ILLEGAL
Special Mode Register Access
NOP (Continue Burst to End
NOP (Continue Burst to End
Term burst
ILLEGAL
Term burst, Begin Read; Latch CA; Determine AP
ILLEGAL
Term burst, Begin Write; Latch CA; Determine AP
Term burst. Begin Write; Latch CA; Determine AP
ILLEGAL
Term Burst, Precharge timing for Reads
ILLEGAL
ILLEGAL
(2)
(2)
(2)
(2)
(2)
Row active
(5)
(4)
(5)
(6)
(6)
• Row Active)
• Row Active)
(3)
ISSI
(3)
(3)
(3)
25
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