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HD6432351 データシート(PDF) 157 Page - Renesas Technology Corp

部品番号 HD6432351
部品情報  16-Bit Single-Chip Microcomputer
PDF  1025 Pages
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メーカー  RENESAS [Renesas Technology Corp]
ホームページ  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432351 データシート(HTML) 157 Page - Renesas Technology Corp

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Section 6 Bus Controller
Rev. 3.00 Sep 15, 2006 page 123 of 988
REJ09B0330-0300
6.1.2
Block Diagram
Figure 6.1 shows a block diagram of the bus controller.
Area decoder
Bus
controller
ABWCR
ASTCR
BCRH
BCRL
Internal
address bus
CS0 to CS7
External bus control signals
BREQ
BACK
BREQO
Internal control
signals
Wait
controller
WCRH
WCRL
Bus mode signal
DRAM controller
RTCNT
RTCOR
DRAMCR
MCR
Bus arbiter
CPU bus request signal
DTC bus request signal
DMAC bus request signal
CPU bus acknowledge signal
DTC bus acknowledge signal
DMAC bus acknowledge signal
External DRAM
signals
WAIT
Figure 6.1 Block Diagram of Bus Controller



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