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7906 Datasheet(PDF) 284 Page - Renesas Technology Corp

Part # 7906
Description  16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  531 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7906 Datasheet(HTML) 284 Page - Renesas Technology Corp

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7906 Group User’s Manual Rev.2.0
11-43
SERIAL I/O
11.4 Clock asynchronous serial I/O (UART) mode
[When not using interrupts]
[When using interrupts]
UARTi transmit interrupt
UART0 transmit interrupt control register (Address 7116)
UART1 transmit interrupt control register (Address 7316)
b7
b
0
Interrupt request bit
Checking start of transmission
UART0 transmit/receive control register 0 (Address 3416)
UART1 transmit/receive control register 0 (Address 3C16)
b7
b0
Checking completion of transmission.
Transmit register empty flag
0: Transmission is in progress.
1: Transmission is completed.
Processing at completion of transmission
0: No interrupt requested
1: Interrupt requested
(Transmission has started.)
A UARTi transmit interrupt request
occurs when the transmission starts.
Note: This figure shows the bits and registers required
for processing.
See Figures 11.4.7 to 11.4.9 for the change of
flag state and the occurrence timing of an interrupt
request.
00
Fig. 11.4.6 Detect operation of transmit completion



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