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7643 Datasheet(PDF) 18 Page - Renesas Technology Corp

Part # 7643
Description  SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PDF  121 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7643 Datasheet(HTML) 18 Page - Renesas Technology Corp

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7643 Group
Rev.2.00
Aug 28, 2006
page 18 of 119
REJ03B0054-0200
Fig. 14 Port block diagram (3)
HOLD
HLDA
(11) Port P71
Data bus
Direction
register
Port latch
HOLD function enable bit
HOLD function
enable bit
(13) Port P73
HOLD function enable bit
(15) Port P80
Direction
register
Port latch
Data bus
SRDY output select bit
(Serial I/O) SPI mode select bit
(Serial I/O) SPI mode
select bit
Control for SPI
compatible mode
(12) Port P72
(14) Port P74
(16) Port P81
Data bus
Direction
register
Port latch
(Serial I/O) Internal synchronous
clock select bits
Serial I/O port select bit
(Serial I/O) Internal
synchronous clock
select bits
Serial I/O clock input
Serial I/O clock output
Data bus
Direction
register
Port latch
Data bus
Direction
register
Port latch
Data bus
Direction
register
Port latch
SRDY output



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