M16CSLASH62 datasheet(139/615 Pages) RENESAS

139 / 615 page

Mitsubishi microcomputers

M16C / 62A Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Clock synchronous serial I/O mode

1-120

Figure 1.16.10. UARTi transmit/receive mode register in clock synchronous serial I/O mode

Symbol

Address

When reset

UiMR(i=0,1)

03A016, 03A816

0016

CKDIR

UARTi transmit/receive mode registers

Internal/external clock

select bit

STPS

PRY

PRYE

SLEP

0 : Internal clock

1 : External clock (Note)

Bit name

Function

Bit symbol

0 (Must always be “0” in clock synchronous serial I/O mode)

SMD0

SMD1

SMD2

Serial I/O mode select bit

0 0 1 : Clock synchronous serial

I/O mode

b2 b1 b0

Invalid in clock synchronous serial I/O mode

Symbol

Address

When reset

U2MR

037816

0016

CKDIR

UART2 transmit/receive mode register

Internal/external clock

select bit

STPS

PRY

PRYE

IOPOL

0 : Internal clock

1 : External clock (Note 2)

Bit name

Function

Bit symbol

SMD0

SMD1

SMD2

Serial I/O mode select bit

0 0 1 : Clock synchronous serial

I/O mode

b2 b1 b0

Invalid in clock synchronous serial I/O mode

TxD, RxD I/O polarity

reverse bit (Note 1)

0 : No reverse

1 : Reverse

Note 1: Usually set to “0”.

Note 2: Set the corresponding port direction register to “0”.

Note : Set the corresponding port direction register to “0”.

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