HD6433308 Datasheet, PDF (247/349 Pages) Hitachi Semiconductor – Hitachi Single-Chip MicroComputer

H8/300 CPU
Master CPU
SWMF
MWMF
MREF
MWEF
SWEF
(RDY)
H8/300 CPU
Master CPU
SWMF
MWMF
Write
PCDR0
Read
PCCSR ^Write
PCDR14
Read
PCDR14
Slave receive mode
Read
PCDR0
Write
Read Write
PCDR0 PCCSR PCDR14
Read
PCDR14
Read
PCDR0
Read
Write PCCSR ^Write
PCDR0
PCDR14
Slave transmit mode
Read
PCDR14
Read
PCDR0
Write Read
Write
PCDR0 PCCSR PCDR14
Read
PCDR14
Read
PCDR0
MREF
MWEF
SWEF
(RDY)
Figure 11-3. Dual-Port RAM Timing Chart