HT46R63 Holtek Semiconductor Inc., HT46R63 Datasheet - Page 23

• Manufacturer Part Number: HT46R63
• Description: Ht46r63/ht46c63 -- A/d With Lcd Type 8-bit Mcu
• Manufacturer: Holtek Semiconductor Inc.

PWM
The micro-controller provides 4 channels (6+2) bits
PWM outputs shared with PD0~PD3. The PWM chan-
nels has their data register. The PWMs uses a PWM
counter whose stages are 8 (stage 1~stage 8: f
f
mes from f
ter. The waveforms of PWM outputs are as shown.
Once the PDi (i=0~3) is selected as the PWMi output
Rev. 2.30
SYS
/2
8
). The frequency source of the PWM counter co-
SYS
. The PWM register is an eight bits regis-
A/D Conversion Timing
SYS
/2
PWM Mode
1
~
23
and the output function of PDi is enabled, writing 1 to
PDi data register will enable the PWMi output function.
Otherwise the PDi will stay at 0 . The PWM modulation
frequency, PWM cycle frequency and PWM cycle duty
are summarized in the following table.
PWMi Modulation
Frequency
f
SYS
/64
PWMi Cycle
Frequency
HT46R63/HT46C63
f
SYS
/256
March 22, 2006
PWMi Cycle
[PWM]/256
Duty