HD6437020 Datasheet, PDF (160/507 Pages) Hitachi Semiconductor – SuperH™ RISC engine

CK
A21–
A0
RAS
CAS
WR
AD15–
A0
Access A
Access B
Silent
Tp
Tr
Tc
Tc
cycle
Tc
Tc
Column Column
address A-1 address A-2
Column Column
address B-1 address B-2
Row address
Data A-1 Data A-2
Data B-1 Data B-2
Note: Access A and B are examples of 32-bit data accesses in their respective 16-bit bus width
spaces.
Figure 8.24 Short Pitch High-Speed Page Mode (Write Cycle)
144 HITACHI