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7721 Scheda tecnica(PDF) 229 Page - Renesas Technology Corp

Il numero della parte 7721
Spiegazioni elettronici  16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  577 Pages
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Produttore elettronici  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7721 Scheda tecnica(HTML) 229 Page - Renesas Technology Corp

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SERIAL I/O
7721 Group User’s Manual
11–26
11.3 Clock synchronous serial I/O mode
Fig. 11.3.9 Processing after receive completion
[When not using interrupts]
[When using interrupts]
A UARTi receive interrupt request occurs
when reception is completed.
UARTi receive interrupt
Processing after reading out receive data
UART0 receive buffer register (Address 3616)
UART1 receive buffer register (Address 3E16)
b7
b0
Reading of receive data
Receive data is read out from here.
b7
b0
Checking completion of reception
1
1
Note : This figure shows the bits and registers required
for processing.
Refer to “Figure 11.3.12” for the change of flag
state and the occurrence timing of an interrupt
request.
b7
b0
Checking error
1
1
Overrun error flag
0: No overrun error
1: Overrun error detected
UART0 transmit/receive control register 1 (Address 3516)
UART1 transmit/receive control register 1 (Address 3D16)
UART0 transmit/receive control register 1 (Address 3516)
UART1 transmit/receive control register 1 (Address 3D16)
Receive complete flag
0: Reception not completed
1: Reception completed



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