TMP93CS44 datasheet(119/224 Pages) TOSHIBA

119 / 224 page

TMP93CS44/S45

2004-02-10

93CS44-117

Setting example: To output 2 ms one-shot pulse with 3 ms delay to the external trigger

pulse to TI4 pin

* Clock condition

System clock:

High frequency (fs)

Clock gear:

1 (fc)

Prescaler clock: fFPH

Main setting

Keep counting (Free runnig)

Count with

φT1

T4MOD

← − − 1 0 1 0 0 1

Load the up counter value into CAP1 at the rise edge of TI4

pin input.

T4FFCR

← X X 0 0 0 0 1 0

Clear TFF4 to 0.

Disable TFF4 inversion.

P4CR

← − − − 1 − − − −

P4FC

← − X X 1 X X − X

Select P44 as the TO4 pin.

INTE45

← − − − − 1 1 0 0

INTET54

← 1 0 0 0 1 0 0 0

Enable INT4, and disable INTTR4 and INTTR5.

TRUN

← 1 X − 1 − − − −

Start timer 4.

Setting of INT4

TREG4

← CAP1 + 3 ms/φT1

TREG5

← TREG4 + 2 ms/φT1

T4FFCR

← X X − − 1 1 − −

Enable TFF4 inversion when the up counter value matches

TREG4 or TREG5.

INTET54

← 1 1 0 0 − − − −

Enable INTTR5.

Setting of INTTR5

T4FFCR

← X X − − 0 0 − −

Disable TFF4 inversion when the up counter value matches

TREG4 or TREG5.

INTET54

← 1 1 0 0 − − − −

Disable INTTR5.

X: Don’t care,

−: No change

When delay time is unnecessary, invert timer flip-flop (TFF4) when the up

counter value is loaded into capture register 1 (CAP1), and set the CAP1 value (c)

plus the one-shot pulse width (p) to TREG5 when the interrupt INT4 occurs. The

TFF4 inversion should be enabled when the up counter (UC4) value matches

TREG5, and disabled when generating the interrupt INTTR5.

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