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7643 Datasheet(PDF) 19 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) 19 Page - Renesas Technology Corp

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Rev.2.00
Aug 28, 2006
page 19 of 119
7643 Group
REJ03B0054-0200
Fig. 15 Port block diagram (4)
(17) Port P82
Data bus
Direction
register
Port latch
(Serial I/O) SRXD input enable bit
Port latch
(Serial I/O) SRXD input
(19) Port P84
Data bus
Port latch
Direction
register
(UART) Transmit enable bit
(UART) UTXD output
(21) Port P86
Data bus
Direction
register
(UART) CTS function enable bit
Port latch
(UART) CTS input
(18) Port P83
Data bus
Direction
register
Port latch
Transmit completed signal
Serial I/O port select bit
STXD output channel
control bit
(Serial I/O) STXD output
(20) Port P85
Data bus
Direction
register
Port latch
(UART) Receive enable bit
(UART) URXD input
(22) Port P87
Data bus
Direction
register
(UART) RTS function enable bit
Port latch
(UART) RTS output



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