M306V2EEFS datasheet(107/271 Pages) RENESAS

107 / 271 page

Rev.1.40

Oct 06, 2004 page 107 of 269

M306V2ME-XXXFP, M306V2EEFP

Figure 2.11.12 UART2 transmit/receive control register 1

UART2 transmit/receive control register 1

Symbol

Address

When reset

U2C1

037D16

0216

Bit name

Bit

symbol

Function

(During UART mode)

Function

(During clock synchronous

serial I/O mode)

Transmit enable bit

Receive enable bit

Receive complete flag

Transmit buffer

empty flag

0 : Transmission disabled

1 : Transmission enabled

0 : Data present in

transmit buffer register

1 : No data present in

transmit buffer register

0 : Reception disabled

1 : Reception enabled

0 : Transmission disabled

1 : Transmission enabled

0 : Data present in

transmit buffer register

1 : No data present in

transmit buffer register

0 : Reception disabled

1 : Reception enabled

0 : No data present in

receive buffer register

1 : Data present in

receive buffer register

0 : No data present in

receive buffer register

1 : Data present in

receive buffer register

U2IRS

UART2 transmit interrupt

cause select bit

0 : Transmit buffer empty

(TI = 1)

1 : Transmit is completed

(TXEPT = 1)

0 : Transmit buffer empty

(TI = 1)

1 : Transmit is completed

(TXEPT = 1)

U2RRM UART2 continuous

receive mode enable bit

0 : Continuous receive

mode disabled

1 : Continuous receive

mode enabled

Invalid

Data logic select bit

0 : No reverse

1 : Reverse

0 : No reverse

1 : Reverse

U2LCH

U2ERE Error signal output

enable bit

Must always be set to “0”

0 : Output disabled

1 : Output enabled

UART0 transmit/receive control register 1

Symbol

Address

When reset

U0C1

03A516

0216

b7b6b5b4b3b2b1b0

Bit name

Bit

symbol

Function

(During UART mode)

Function

(During clock synchronous

serial I/O mode)

Transmit enable bit

Receive enable bit

Receive complete flag

Transmit buffer

empty flag

0 : Transmission disabled

1 : Transmission enabled

0 : Data present in

transmit buffer register

1 : No data present in

transmit buffer register

0 : Reception disabled

1 : Reception enabled

0 : Transmission disabled

1 : Transmission enabled

0 : Data present in

transmit buffer register

1 : No data present in

transmit buffer register

0 : Reception disabled

1 : Reception enabled

0 : No data present in

receive buffer register

1 : Data present in

receive buffer register

0 : No data present in

receive buffer register

1 : Data present in

receive buffer register

Nothing is assigned.

In an attempt to write to these bits, write “0.” The value, if read, turns out to be “0.”

Figure 2.11.11 UART0 transmit/receive control register 1

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