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HD6417751RBP240V Datasheet, PDF (592/1226 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents
13. Bus State Controller (BSC)
CKIO
BREQ
BACK
A25–A0
CSn
RD/WR
RD
WEn
Asserted for at least 2 cycles*
Negated within 2 cycles
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
BACK/BSREQ
BREQ/BSACK
A25–A0
CSn
RD/WR
RD
WEn
D31–D0
(read)
Master mode device access
Asserted for at least 2 cycles
Negated within 2 cycles
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Slave mode device access
Master access
Slave access
Master access
Note: * For the SH7751, refer to the Usage Note in section 13.3.15.
Figure 13.69 Arbitration Sequence
Rev.4.00 Oct. 10, 2008 Page 492 of 1122
REJ09B0370-0400