h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 142
h8s-2649
Manufacturer Part Number
h8s-2649
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2649.pdf
(766 pages)
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Section 7 Bus Controller (BSC)
A block diagram of the bus controller is shown in figure 7.1.
Rev. 2.00 Dec. 05, 2005 Page 104 of 724
REJ09B0200-0200
External bus control signals
[Legend]
ABWCR: Bus width control register
ASTCR:
BCRH:
BCRL:
WCRH:
WCRL:
WAIT
Access state control register
Bus control register H
Wait control register H
Bus control register L
Wait control register L
Figure 7.1 Block Diagram of Bus Controller
controller
Wait
Area decoder
Bus arbiter
controller
Bus
ABWCR
ASTCR
WCRH
WCRL
BCRH
BCRL
CPU bus request signal
DTC bus request signal
CPU bus acknowledge signal
DTC bus acknowledge signal
Internal control
signals
Bus mode signal
Internal
address bus
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