HT83F10 HOLTEK [Holtek Semiconductor Inc], HT83F10 Datasheet - Page 42
HT83F10
Manufacturer Part Number
HT83F10
Description
Flash Type Voice OTP MCU
Manufacturer
HOLTEK [Holtek Semiconductor Inc]
Datasheet
1.HT83F10.pdf
(61 pages)
- Current page: 42 of 61
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HT83FXX
Watchdog Timer Register
Watchdog Timer
Voice Output
The device contains an internal 12-bit DAC function
which can be used for audio signal generation.
Voice Control
Two internal registers DAL and DAH contain the 12-bit
digital value for conversion by the internal DAC. There is
also a DAC enable/disable control bit in the PWMC con-
trol register for overall on/off control of the DAC circuit. If
the DAC circuit is not enabled, the the DAH/DAL value
outputs will be invalid. Writing a 1 to the DAC bit in bit1
of PWMCR will enable the enable DAC circuit, while
writing a 0 to the DAC bit will disable the DAC circuit.
Audio Output and Volume Control - DAL, DAH, VOL
The audio output is 12-bits wide whose highest 8-bits
are written into the DAH register and whose lowest four
bits are written into the highest four bits of the DAL regis-
ter. Bits 0~3 of the DAL register are always read as zero.
There are 8 levels of volume which are setup using the
VOL register. Only the highest 3-bits of this register are
used for volume control, the other bits are not used and
read as zero.
Rev. 1.00
42
May 12, 2009
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