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| HD64570 Datasheet, PDF (355/469 Pages) Hitachi Semiconductor – Serial Communications Adaptor | |||
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MPU
BUSREQ
BUSACK
SCA
BUSREQ
BUSY
BUSACK
Figure 9.8 BUSREQ Control Circuit
HD64180
SCA
WAIT
BUSREQ
BUSACK
Ï
DQ DQ
BUSREQ
BUSY
BUSACK
CLK
Pull-up with 4.7 kâ¦
Figure 9.9 Diagrams of the Bus Arbitration Circuit
Rev. 0, 07/98, page 339 of 453
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