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Renesas RJJ10J1643-0101 User Manual

Page 28

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Rev.1.01 2007.02.16
RJJ10J1643-0101

26

(R8C) (UART0, UART1)

RAPI_SM_SYNC

Clock synchronous serial communication mode

RAPI_SM_ASYNC

Clock asynchronous serial communication mode

For the data length format of clock asynchronous serial communication, the following
values can be set.

If the API is used in clock synchronous serial communication mode, do not set these
values.

(R8C) (UART0, UART1)

RAPI_BIT_7

Transfer data length 7 bits

RAPI_BIT_8

Transfer data length 8 bits

RAPI_BIT_9

Transfer data length 9 bits

For the clock source of serial communication, the following values can be set.

(R8C) (UART0, UART1)

RAPI_CKDIR_INT

Internal clock is used as the clock source of serial communication.

RAPI_CKDIR_EXT

External clock is used as the clock source of serial communication.

For the stop bit length of clock asynchronous serial communication, the following
values can be set.

If the API is used in clock synchronous serial communication mode, do not set these
values.

(R8C) (UART0, UART1)

RAPI_STPB_1

1 stop bit

RAPI_STPB_2

2 stop bits

For the parity bit of clock asynchronous serial communication, the following values can
be set.

If the API is used in clock synchronous serial communication mode, do not set these
values.

(R8C) (UART0, UART1)

RAPI_PARITY_NON

No parity bit

RAPI_PARITY_EVEN

Even parity bit

RAPI_PARITY_ODD

Odd parity bit

For the clock polarity of serial communication, the following values can be set.

If the API is used in clock asynchronous serial communication mode, do not set these
values.

(R8C) (UART0, UART1)

RAPI_DPOL_NON

Polarity not inverted

RAPI_DPOL_INV Polarity

inverted

For the count source of the built-in baud rate generator, the following values can be set.

(R8C) (UART0, UART1)

RAPI_BCSS_F1 f1SIO

RAPI_BCSS_F8 f8SIO

RAPI_BCSS_F32 f32SIO

For the transfer format, the following values can be set.

If the data length selected for use in clock asynchronous serial communication mode is
7 or 9 bits long, do not set these values.

(R8C) (UART0, UART1)

RAPI_LSB_SEL LSB

first

RAPI_MSB_SEL MSB

first

(H8/300H)

RAPI_COM1

SCI3 channel 1

RAPI_COM2

SCI3 channel 2