M32CSLASH86 datasheet(314/505 Pages) RENESAS

314 / 505 page

Page 291

22. Intelligent I/O (Communication Function)

)

(

Figure 22.22 G0MR and G1MR Registers

SI/O Communication Mode Register 0

Symbol

Address

After Reset

G0MR

00ED16

0016

Bit Name

Function

Bit

Symbol

NOTES:

1. Do not set to any bit combinations except the above.

GMD0

GMD1

CKDIR

(b5 - b3)

Communication Mode

Select Bit

UFORM

IRS

Internal/External Clock

Select Bit

Transfer Format

Select Bit

Transmit Interrupt

Cause Select Bit

0 : Internal clock

1 : External clock

0 : LSB first

1 : MSB first

: Clock synchronous serial I/O

mode

: HDLC data processing mode(1)

Reserved Bit

Set to "0"

00 0

0 : No data in the G0TB register

(TI=1)

1 : Transmission is completed

(TXEPT=1)

SI/O Communication Mode Register 1

Symbol

Address

After Reset

G1MR

012D16

0016

Bit Name

Function

Bit

Symbol

NOTES:

1. In M32C/86, do not set the GMD1 and GMD0 bits to "102" except when using in motor vehicles.

GMD0

GMD1

CKDIR

Communication Mode

Select Bit

STPS

PRY

PRYE

UFORM

IRS

Internal/External Clock

Select Bit

Stop Bit Length

Select Bit

Parity Odd/Even

Select Bit

Parity Enable

Select Bit

Transfer Format

Select Bit

Transmit Interrupt

Cause Select Bit

0 : Internal clock

1 : External clock

0 : 1 stop bit

1 : 2 stop bits

0 : Parity disabled

1 : Parity enabled

0 : Odd parity

1 : Even parity

0 : LSB first

1 : MSB first

: UART mode

: Clock synchronous serial I/O

mode

: Special communication mode(1)

: HDLC data processing mode

0 : No data in the G1TB register

(TI=1)

1 : Transmission is completed

(TXEPT=1)

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