TMP93CS41 datasheet(196/248 Pages) TOSHIBA

196 / 248 page

TMP93CS40/TMP93CS41

2004-02-10

93CS40-194

Setting example: To link two slave controllers serially with the master controller, and

use the internal clock

φ1 as the transfer clock.

Since serial channels 0 and 1 operate in exactly the same way, channel 0 only is used

for the purposes of this explanation.

•

Setting the master controller

Main

P9CR

← X X − − − − 01

P9FC

← X X − X − XX 1

Select P90 as TXD0 pin and P91 as RXD0 pin.

INTES0

← 1 1 0 0110 1

Enable INTTX0 and set interrupt level 4.

Enable INTRX0 and set interrupt level 5.

SC0MOD

← 1 0 1 0111 0

Set

φ1 as the transmission clock in 9-bit UART mode.

SC0BUF

← 0 0 0 0000 1

Set the select code for slave controller 1.

INTTX0 interrupt

SC0MOD

← 0 − − − − − − −

Sets TB8 to 0.

SC0BUF

← *

****

Set data for transmission.

•

Setting the slave controller

Main

P9CR

← X X − − − − 01

P9FC

← X X − X − XX 1

ODE

← X X X X X X − 1

Select P91 as RXD0 pin and P90 as TXD0 pin

(Open-drain output).

INTES0

← 1 1 0 1111 0

Enable INTRX0 and INTTX0.

SC0MOD

← 0 0 1 1111 0

Set <WU> to 1 in 9-bit UART transmission mode with

transfer clock

φ1.

INTRX0 interrupt

Acc

← SC0BUF

if Acc

= Select code

Then SC0MOD

← − − − 0 − − − −

Clear <WU> to 0.

Master

RXD

TXD

Slave 1

RXD

TXD

Slave 2

RXD

TXD

Select code

00000001

Select code

00001010

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