12.9 Receive
12.9.1 Receive Counter
The receive counter is a 4-bit binary counter and is up-counted by SIOCLK.
In the UART mode, sixteen SIOCLK clock pulses are used in receiving a single data bit and the data sym-
bol is sampled at the eighth pulse.
12.9.2 Receive Control Unit
12.9.2.1 I/O interface mode
In the clock output mode with SCxCR <IOC> set to "0", the RXDx pin is sampled on the rising edge
of SCLKx pin.
In the clock input mode with SCxCR <IOC> set to "1", the RXDx pin is sampled on the rising or fall-
ing edge of SCLKx pin depending on the SCxCR <SCLKS>.
12.9.2.2 UART Mode
The receive control unit has a start bit detection circuit, which is used to initiate receive operation
when a normal start bit is detected.
12.9.3 Receive Operation
12.9.3.1 Receive Buffer
The received data is stored by 1 bit in the receive shift register. When a complete set of bits has been stor-
ed, the interrupt INTRXx is generated.
When the double buffer is enabled, the data is moved to the receive buffer (SCxBUF) and the receive buf-
fer full flag (SCxMOD2<RBFLL>) is set to "1". The receive buffer full flag is cleared to "0" by reading
the receive buffer. When the double buffer is disabled, the receive buffer full flag has no meaning.
DATA 1
DATA 1
Receive shift register
Receive buffer
SCxMOD2<RBFLL>
Receive interrupt(INTRXx)
Receive buffer read
Figure 12-5 Receive Buffer Operation
TMPM3V6/M3V4
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2019-02-06
Содержание TMPM3V4
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Страница 2: ... 2019 Toshiba Electronic Devices Storage Corporation ...
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Страница 148: ...TMPM3V6 M3V4 7 Exceptions 7 6 Exception Interrupt Related Registers Page 126 2019 02 06 ...
Страница 178: ...TMPM3V6 M3V4 9 Input Output port 9 2 Block Diagrams of Ports Page 156 2019 02 06 ...
Страница 206: ...TMPM3V6 M3V4 10 16 bit Timer Event Counters TMRB 10 7 Applications using the Capture Function Page 184 2019 02 06 ...
Страница 232: ...TMPM3V6 M3V4 11 Universal Asynchronous Receiver Transmitter Circuit UART 11 4 Operation Description Page 210 2019 02 06 ...
Страница 354: ...TMPM3V6 M3V4 14 Synchronous Serial Port SSP 14 6 Frame Format Page 332 2019 02 06 ...
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Страница 420: ...TMPM3V6 M3V4 16 Analog Digital Converter ADC 16 6 Timing chart of AD conversion Page 398 2019 02 06 ...
Страница 462: ...TMPM3V6 M3V4 21 Watchdog Timer WDT 21 5 Control register Page 440 2019 02 06 ...
Страница 510: ...TMPM3V6 M3V4 22 Flash Memory Operation 22 4 Programming in the User Boot Mode Page 488 2019 02 06 ...
Страница 538: ...TMPM3V6 M3V4 25 Electrical Characteristics 25 7 Recommended Oscillation Circuit Page 516 2019 02 06 ...
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