HD6432345 Datasheet, PDF (151/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

6.1.2 Block Diagram
Figure 6.1 shows a block diagram of the bus controller.
CS0 to CS3
Area decoder
External bus control signals
BREQ
BACK
ABWCR
ASTCR
BCRH
BCRL
Bus
controller
Internal
address bus
Internal control
signals
Bus mode signal
WAIT
Wait
controller
WCRH
WCRL
Bus arbiter
CPU bus request signal
DTC bus request signal
CPU bus acknowledge signal
DTC bus acknowledge signal
Figure 6.1 Block Diagram of Bus Controller
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