M16C26A Datasheet, PDF(168/352 Page) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

M16C26A Datasheet, PDF (168/352 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

◁

M16C/26A Group (M16C/26A, M16C/26B, M16C/26T)

13. Serial I/O

Table 13.1.2.2. Registers to Be Used and Settings in UART Mode

Register

UiTB

UiRB

Bit

0 to 8

0 to 8

Function

Set transmission data (1)

Reception data can be read (1)

OER,FER,PER,SUM Error flag

UiBRG 0 to 7

Set a transfer rate

UiMR

SMD2 to SMD0 Set these bits to â1002â when transfer data is 7 bits long

Set these bits to â1012â when transfer data is 8 bits long

Set these bits to â1102â when transfer data is 9 bits long

CKDIR

Select the internal clock or external clock

STPS

Select the stop bit

PRY, PRYE

IOPOL(i=2)(4)

Select whether parity is included and whether odd or even

Select the TxD/RxD input/output polarity

UiC0

CLK0, CLK1

CRS

Select the count source for the UiBRG register

_______

_______

Select CTS or RTS to use

TXEPT

CRD

Transmit register empty flag

_______

_______

Enable or disable the CTS or RTS function

NCH

Select TxDi pin output mode

CKPOL

Set to â0â

UFORM

LSB first or MSB first can be selected when transfer data is 8 bits long. Set this

bit to â0â when transfer data is 7 or 9 bits long.

UiC1

TE

Set this bit to â1â to enable transmission

TI

Transmit buffer empty flag

RE

Set this bit to â1â to enable reception

RI

U2IRS (2)

U2RRM (2)

U2LCH (3)

U2ERE (3)

Reception complete flag

Select the source of UART2 transmit interrupt

Set to â0â

Set this bit to â1â to use UART2 inverted data logic

Set to â0â

U2SMR 0 to 7

Set to â0â

U2SMR2 0 to 7

Set to â0â

U2SMR3 0 to 7

Set to â0â

U2SMR4 0 to 7

Set to â0â

UCON

U0IRS, U1IRS

Select the source of UART0/UART1 transmit interrupt

U0RRM, U1RRM Set to â0â

CLKMD0

Invalid because CLKMD1 = 0

CLKMD1

RCSP

Set to â0â

_________

Set this bit to â1â to accept as input the UART0 CTS0 signal from the P64 pin or P70 pin

7

Set to â0â

NOTES:

1. The bits used for transmit/receive data are as follows: Bit 0 to bit 6 when transfer data is 7 bits long; bit 0 to

bit 7 when transfer data is 8 bits long; bit 0 to bit 8 when transfer data is 9 bits long.

2. Set the bit 4 to bit 5 in the U0C1 and U1C1 registers to â0â. The U0IRS, U1IRS, U0RRM and U1RRM bits

are included in the UCON register.

3. Set the bit 6 to bit 7 in the U0C1 and U1C1 registers to â0â.

4. Set the bit 7 the U0MR and U1MR registers to â0â.

i=0 to 2

Rev. 2.00 Feb.15, 2007 page 151 of 329

REJ09B0202-0200

▷