TMP93CS41 datasheet(151/248 Pages) TOSHIBA

151 / 248 page

TMP93CS40/TMP93CS41

2004-02-10

93CS40-149

Setting example: To output a 2 ms one-shot pulse to the external trigger pulse to TI4 pin,

with 3 ms delay

Clock condition

System clock:

High frequency (fc)

Clock gear:

1 (fc)

Prescaler clock:

fFPH

Main setting

Keep counting (Free running)

Count with

φT1.

T4MOD

← − − 1 01 00 1

Load the up counter value into CAP1 at the rising edge of

TI4 pin input.

T4FFCR

← 1 1 0 0 0 0 1 0

Clear TFF4 to zero.

Disable TFF4 inversion.

P8CR

← − − − − − 1 − −

P8FC

← X − X X − 1X X

Select P82 as the TO4 pin.

INTE45

← − − − − 1 1 0 0

Enable INT4, and disable INTTR4 and INTTR5.

INTET54

← 1 0 0 0 1 0 0 0

TRUN

← 1 X − 1 − − − −

Start timer 4.

Setting of INT4

TREG4

←

CAP1

+ 3 ms/φT1

TREG5

←

TREG4

+ 2 ms/φT1

T4FFCR

← − − − − 11 − −

Enable TFF4 inversion when the up counter value

matches TREG4 or TREG5.

INTET54

← 1 1 0

− − − −

Enable INTTR5.

Setting of INTTR5

T4FFCR

← − − − −

− −

Disable TFF4 inversion when the up counter value

matches TREG4 or TREG5.

INTET54

← 1 0 0 0

−

− −

Disable INTTR5.

X: Don’t care, −: No change

When a delay time is unnecessary, invert the timer flip-flop TFF4 by loading the up

counter value into capture register 1 (CAP1). Then set TREG5 to the CAP1 value (c) plus

the one-shot pulse width (p) when an INT4 interrupt occurs. The TFF4 inversion should be

enabled when the up counter (UC4) value matches TREG5, and disabled when generating

the interrupt INTTR5.

TMP93CS41 Datasheet(PDF) 151 Page - Toshiba Semiconductor

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