SH7020 Datasheet, PDF (112/509 Pages) Renesas Technology Corp – SuperH™ RISC engine

WAIT
RD
WRH, WRL
HBS, LBS
AH
CS7 to CS0
Wait control
unit
Area control
unit
CASH, CASL
RAS
CMI interrupt request
DRAM
control
unit
Bus
interface
WCR1
WCR2
WCR3
BCR
DCR
RCR
RTCSR
RTCNT
DPH, DPL
PEI interrupt request
Parity control
unit
Interrupt
controller
Comparator
RTCOR
PCR
WCR: Wait state control register
BCR: Bus control register
DCR: DRAM area control register
RCR: Refresh control register
RTCSR: Refresh timer control/status register
RTCNT: Refresh timer counter
RTCOR: Refresh time constant register
PCR: Parity control register
Figure 8.1 BSC Block Diagram
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