HT68F20 datasheet(115/210 Pages) HOLTEK

115 / 210 page

HT68F20/HT68F30/HT68F40/HT68F50/HT68F60

Rev.1.00

115

November 3, 2009

CCRP

CCRA

0x3FF

Counter

Value

CCRA = 0

Counter overflows

CCRP Int.

Flag TnPF

CCRA Int.

Flag TnAF

CCRA > 0 Counter cleared by CCRA value

TPnA O/P Pin

TnON bit

Pause

Counter

Reset

Output Pin

Reset to initial value

Output Pin set

to Initial Level

Low if TnAOC = 0

Output Toggle

with TnAF flag

Here TnAIO1, TnAIO0 = 11

Toggle Output Select

Now TnAIO 1, TnAIO 0 = 10

Act ive High Output Select

Output not aff ected by TnAF flag

remains High until reset by TnON bit

TnPAU bit

Resume

Stop

Time

TnPF not

generated

No TnAF flag

generated on

CCRA overflow

Out put does

not change

CCRA = 0

Output inverts

when TnAPOL is high

TnAPOL bit

TnCCLR = 1; TnAM1, TnAM0 = 00

ETM CCRA Compare Match Output Mode

- TnCCLR = 1

Note:

1. With TnCCLR = 1 the Comparator A match will clear the counter

2. TPnA output pin controlled only by TnAF flag

3. TPnA output pin reset to initial state by TnON rising edge

4. TnPF flags not generated when TnCCLR = 1

HT68F20 Datasheet(PDF) 115 Page - Holtek Semiconductor Inc

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