MB86294 Datasheet, PDF (274/305 Pages) Fujitsu Component Limited. – Grraphiics Controller specifications

FUJITSU LIMITED
PRELIMINARY and CONFIDENTIAL
12.2.3 Timing of write access to same row address
MCLKO
MRAS
MCAS
MWE
TRCD
MA
ROW
MD
DQM
COL
COL
COL
COL
DATA DATA DATA DATA
ROW: Row Address
COL: Column Address
DATA: READ DATA
TRCD: RAS to CAS Delay Time
Fig. 10.21 Timing of Write Access to Same Row Address
The above timing diagram shows that write access is made form times form CORAL to the same row
address of SDRAM.
The ACTV command is issued, and then after the elapse of TRCD, the WRITE command is issued to
write to SDRAM.
MB86294/294S CORAL_LB
Graphics Controller
274
Specifications Rev. 1.0