TMP93CS44 datasheet(125/224 Pages) TOSHIBA

125 / 224 page

TMP93CS44/S45

2004-02-10

93CS44-123

3.9.1

Control registers

The serial channel 0 is controlled by 3 control registers SC0CR, SC0MOD and BR0CR.

Transmitted and received data are stored in register SC0BUF.

The serial channel 1 has same registers (SC1CR, SC1MOD, BR1CR and SC1BUF).

Serial Channel 0 Mode Control Register

Bit symbol

TB8

CTSE0

RXE

SM1

SM0

SC1

SC0

SC0MOD

(0052H)

Read/Write

R/W

After reset

Undefined

Function

Transfer

data

bit8

Handshake

function

0: CTS0

disable

1: CTS0

enable

Receiving

function

0: Receive

disable

1: Receive

enable

Wakeup

function

0: Disable

1: Enable

Serial transmission mode

00: I/O interface

mode

01: 7-bit UART

10: 8-bit UART

11: 9-bit UART

Serial transmission

clock (UART)

00: TO2 Trigger

01: Baud rate

generator 0

10: Internal clock φ1

11: External clock

(SCLK0 input)

Figure 3.9.2 Serial Channel 0 Related Register (1/7)

Serial transmission clock (for UART mode)

Timer 2 match detect signal

Baud rate generator

Internal clock

φ1 (fSYS)

External clock (SCLK0 input)

Wakeup function

(Don’t care in the modes other than 9-bit UART)

Disable

Enable

Serial transmission mode

I/O Interface mode

7-bit length

8-bit length

UART

9-bit length

Receiving function

Receive disable

Receive enable

Handshake function (

CTS

pin)

Disable (Always transferable)

Enable

Transmission data bit8

8-bit UART mode

(Parity)

Stores transmission

parity bit

9-bit UART mode

Stores transmission

data bit8

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