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7477 Datasheet(PDF) 110 Page - Renesas Technology Corp

Part # 7477
Description  8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES
PDF  354 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7477 Datasheet(HTML) 110 Page - Renesas Technology Corp

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HARDWARE
1-93
7470/7471/7477/7478 GROUP USER’S MANUAL
1.13 Serial I/O
Fig. 1.13A.2 Serial I/O transmit operation
Fig. 1.13A.3 Serial I/O transmit timing chart
A
A:
Synchronous clock,
internal clock divided by 8 to 512, or
external clock
SOUT pin
SRDY signal
SARDY signal
Write signal to
serial I/O register
Serial I/O interrupt enable bit
Serial I/O interrupt request bit
• Clearing by writing “0” to the Serial I/O interrupt request bit.
• Clearing by accepting the Serial I/O interrupt.
D0
D1
D2
D3
D4
D5
D6
D7
P15/SOUT
D0
D1
D2
D3
D4
D5
D6
D7
b0
1
b6
0
D7
b0
D7
b0
D4
D5
D6
D7
P15/SOUT
D2
b0
D3
Synchronous clock
Serial I/O register
Data bus
Address 00DD 16
Write transmit data
Serial I/O register
Synchronous clock
Interrupt request
register 1
(Address 00FC16)
by rising edge
Synchronous clock
Serial I/O register
1
2
3



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