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HT85F2270 Datasheet(PDF) 147 Page - Holtek Semiconductor Inc

Part # HT85F2270
Description  Standard 8051 8-Bit Flash MCU
PDF  226 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT85F2270 Datasheet(HTML) 147 Page - Holtek Semiconductor Inc

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Rev. 1.00
147 of ��6
�a� 1�� �01�
Standard 8051 8-Bit Flash MCU
HT85F2260/HT85F2270/HT85F2280
Compare Modes
Timer 2 has two compare modes, known as Mode 0 and Mode 1. The required mode is selected
using the T2CM bit in the T2CON register. Setting counter data in the Compare modes can
implement the PWM function for various control applications.
Compare Mode 0
In Mode 0, if the Timer 2 counter data is the same as the Compare registers, the compare output
will be set from low to high and the Timer 2 counter overflow will clear the respective output pins,
CCn, to low. In addition, the Module 0 can select the output rising or falling edge interrupt trigger
by the I3FR bit in the T2CON register. The accompanying diagrams illustrate the Basic application
blocks.
CCHn
CCLn
Comparator
TH�
TL�
CCn
Compare �atch
Overflow
“
1”
“
0”
Interrupt
Interrupt
Note: n=1~�
Compare Mode 0 – Module 1, Module 2, Module 3



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