M30620FCAFP datasheet(408/615 Pages) RENESAS

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UART

Mitsubishi microcomputers

M16C / 62A Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

2-91

Figure 2.5.13. Set-up procedure of reception in UART mode (2)

Start reception

Processing after reading out reception data

Continued from the previous page

Checking error

UART0 receive buffer register [Address 03A716, 03A616]U0RB

UART1 receive buffer register [Address 03AF16, 03AE16]U1RB

UART2 receive buffer register [Address 037F16, 037E16]U2RB

Overrun error flag

0 : No overrun error

1 : Overrun error found

b0 b7

(b15)

(b8)

Receive data

Framing error flag

0 : No framing error

1 : Framing error found

Parity error flag

0 : No parity error

1 : Parity error found

Error sum flag

0 : No error

1 : Error found

Setting UARTi bit rate generator(i = 0 to 2)

UARTi bit rate generator (i = 0 to 2) [Address 03A116, 03A916, 037916]

UiBRG (i = 0 to 2)

Can be set to 0016 to FF16 (Note)

Note: Write to UARTi bit rate generator when transmission/reception is halted.

Reception enabled

UART0 transmit/receive control register 1

U0C1 [Address 03A516]

UART1 transmit/receive control register 1

U1C1 [Address 03AD16]

Receive enable bit

1 : Reception enabled

UART2 transmit/receive control register 1

U2C1 [Address 037D16]

Receive enable bit

1 : Reception enabled

Checking completion of reception

UART0 transmit/receive control register 1

U0C1 [Address 03A516]

UART1 transmit/receive control register 1

U1C1 [Address 03AD16]

Receive complete flag

0 : No data present in receive buffer register

1 : Data present in receive buffer register

UART2 transmit/receive control register 1

U2C1 [Address 037D16]

Receive complete flag

0 : No data present in receive buffer register

1 : Data present in receive buffer register

M30620FCAFP Datasheet(PDF) 408 Page - Renesas Technology Corp

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