SH7604 Datasheet, PDF (147/633 Pages) Hitachi Semiconductor – Hardware Manual

Bus
interface
WAIT
CS3–CS0
BS
RD
CAS
RAS
RD/WR
WE3–WE0
CKE
IVECF
CMI interrupt request
Wait
control
unit
Area
control
unit
WCR
BCR1
BCR2
Memory
control
unit
MCR
RTCSR
RTCNT
Comparator
RTCOR
Interrupt
controller
BSC
WCR: Wait control register
BCR: Bus control register
MCR: Individual memory control register
RTCNT: Refresh timer counter
RTCOR: Refresh time constant register
RTCSR: Refresh timer control/status register
Figure 7.1 BSC Block Diagram
131