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HT68F20 Datasheet(PDF) 121 Page - Holtek Semiconductor Inc

Part # HT68F20
Description  Enhanced I/O Flash Type MCU 8-Bit MCU with EEPROM
PDF  210 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT68F20 Datasheet(HTML) 121 Page - Holtek Semiconductor Inc

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HT68F20/HT68F30/HT68F40/HT68F50/HT68F60
Rev.1.00
121
November 3, 2009
CCRA
CCRA Int.
Flag TnAF
TnON bit
PWM Period
set by CCRA
Time
TnBPOL bit
Output I nvert s
When TnBPO L = 1
TPnB Pin
TnBOC = 0
TnPAU bit
Resume
Pause
CCRB
CCRB Int.
Flag TnBF
TPnB Pin
TnBOC = 1
Duty Cycle
set by CCRB
Counter
Value
Counter Stops
if TnON bit low
Counter reset when
TnON ret urns high
TnCCLR = 1;
Mode Bits TnA(B)M1, TnA(B)M0 = 10
TnPWM1/TnPWM0 = 11
PWM Mode
- Centre Aligned
Note:
1. Here TnCCLR = 1 therefore CCRA clears counter and determines PWM period
2. TnPWM1/TnPWM0 = 11 therefore PWM is centre aligned
3. Internal PWM function continues even when TnBIO1, TnBIO0 = 00 or 01
4. CCRA controls the TPnB PWM period and CCRB controls the TPnB PWM duty



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