M32CSLASH8B datasheet(215/406 Pages) RENESAS

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Under development

M32C/8B Group

17. Serial Interfaces

Preliminary specification

Specifications in this manual are tentative and subject to change.

REJ09B0450-0050 Rev.0.50 Oct 31, 2008

Page 198 of 385

Figure 17.2

U0MR to U4MR Registers

b7 b6 b5 b4

Symbol

U0MR to U2MR

U3MR, U4MR

Address

0368h, 02E8h, 0338h

0328h,02F8h

After Reset

00h

Function

Bit Symbol

Bit Name

SMD2

SMD1

SMD0

PRY

PRYE

b2 b1 b0

0 0 0: Serial interface disabled

0 0 1: Clock synchronous mode

0 1 0: I2C mode

1 0 0: UART mode, 7-bit data length

1 0 1: UART mode, 8-bit data length

1 1 0: UART mode, 9-bit data length

Do not set to values other than the above

0: Internal clock

1: External clock

Clock select bit

Parity enable bit

Serial interface mode select bits

STPS

CKDIR

0: 1 stop bit

1: 2 stop bits

0: Parity disabled

1: Parity enabled

Stop bit length select bit

Enabled when PRYE=1

0: Odd parity

1: Even parity

Parity select bit

TXD, RXD input/output

polarity switch bit

0: Not inverted

1: Inverted

IOPOL

UARTi transmit/receive mode register (i = 0 to 4)

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