PRELIMINARY
CY7C1381D
CY7C1383D
Document #: 38-05544 Rev. *A
Page 9 of 29
Read Cycle, Begin Burst
External
L
H
L
L
H
L
X
H
L
L-H Q
Read Cycle, Begin Burst
External
L
H
L
L
H
L
X
H
H
L-H Tri-State
Read Cycle, Continue Burst
Next
X
X
X
L
H
H
L
H
L
L-H Q
Read Cycle, Continue Burst
Next
X
X
X
L
H
H
L
H
H
L-H Tri-State
Read Cycle, Continue Burst
Next
H
X
X
L
X
H
L
H
L
L-H Q
Read Cycle, Continue Burst
Next
H
X
X
L
X
H
L
H
H
L-H Tri-State
Write Cycle, Continue Burst
Next
X
X
X
L
H
H
L
L
X
L-H D
Write Cycle, Continue Burst
Next
H
X
X
L
X
H
L
L
X
L-H D
Read Cycle, Suspend Burst
Current
X
X
X
L
H
H
H
H
L
L-H Q
Read Cycle, Suspend Burst
Current
X
X
X
L
H
H
H
H
H
L-H Tri-State
Read Cycle, Suspend Burst
Current
H
X
X
L
X
H
H
H
L
L-H Q
Read Cycle, Suspend Burst
Current
H
X
X
L
X
H
H
H
H
L-H Tri-State
Write Cycle, Suspend Burst
Current
X
X
X
L
H
H
H
L
X
L-H D
Write Cycle, Suspend Burst
Current
H
X
X
L
X
H
H
L
X
L-H D
Truth Table (continued)[ 3, 4, 5, 6, 7]
Cycle Description
ADDRESS
Used
CE1 CE2 CE3 ZZ
ADSP
ADSC
ADV WRITE
OE
CLK
DQ
Partial Truth Table for Read/Write[3, 8]
Function (CY7C1381D)
GW
BWE
BWD
BWC
BWB
BWA
Read
H
H
X
X
X
X
Read
H
L
HH
HH
Write Byte A (DQA, DQPA)H
L
H
H
H
L
Write Byte B(DQB, DQPB)H
L
H
H
L
H
Write Bytes A, B (DQA, DQB, DQPA, DQPB)H
L
H
H
L
L
Write Byte C (DQC, DQPC)
H
LHLH
H
Write Bytes C, A (DQC, DQA, DQPC, DQPA)
H
LHLH
L
Write Bytes C, B (DQC, DQB, DQPC, DQPB)H
L
H
L
L
H
Write Bytes C, B, A (DQC, DQB, DQA, DQPC,
DQPB, DQPA)
HLHL
L
L
Write Byte D (DQD, DQPD)H
L
L
H
H
H
Write Bytes D, A (DQD, DQA, DQPD, DQPA)H
L
L
H
H
L
Write Bytes D, B (DQD, DQA, DQPD, DQPA)H
L
L
H
L
H
Write Bytes D, B, A (DQD, DQB, DQA, DQPD,
DQPB, DQPA)
HL
L
H
L
L
Write Bytes D, B (DQD, DQB, DQPD, DQPB)H
L
L
L
H
H
Write Bytes D, B, A (DQD, DQC, DQA, DQPD,
DQPC, DQPA)
HL
L
L
H
L
Write Bytes D, C, A ( DQD, DQB, DQA, DQPD,
DQPB, DQPA)
H
L
LLL
H
Write All Bytes
H
L
LLLL
Write All Bytes
L
X
X
X
X
X
Note:
8. Table only lists a partial listing of the byte write combinations. Any Combination of BWX is valid Appropriate write will be done based on which byte write is active.
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
