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7641 Datasheet(PDF) 204 Page - Renesas Technology Corp

Part # 7641
Description  8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  385 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7641 Datasheet(HTML) 204 Page - Renesas Technology Corp

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Rev.2.00
Aug 28, 2006
page 73 of 148
7641 Group
REJ09B0336-0200
APPLICATION
2.4 UART
Fig. 2.4.20 Connection diagram
qUART address mode application example
Outline : The slave CPU (B) receives the data from the host CPU, using the UART address
mode.
Specifications : •UART1 is used.
•Transfer bit rate : 9600 bps
•Data format: 1ST-8DATA-2ST
•Use of port P31 for communication control
Figure 2.4.20 shows a connection diagram; Figure 2.4.21 shows the registers setting related to
UART address mode; Figures 2.4.22 and 2.4.23 show the control procedures.
Slave CPU : 7641 Group
(Address : 0116)
A
B
C
P84/URXD1
P31
Host CPU
UxTXDPort
P84/URXD1
P31
P84/URXD1
P31
Slave CPU : 7641 Group
(Address : 0216)
Slave CPU : 7641 Group
(Address : 0316)



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