HT83F60 datasheet(43/62 Pages) HOLTEK

43 / 62 page

HT83FXX

Rev. 1.30

June 7, 2010

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 DAH/DAL value out-

puts will be invalid. Writing a

²1² to the DAC bit in bit1 of

PWMCR will enable the enable DAC circuit, while writ-

ing a

²0² 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 lowest 3-bits of this register are

used for volume control.

8 - b i t C o u n t e r

(

¸ 2 5 6 )

7 - b i t P r e s c a l e r

8 - t o - 1 M U X

W D T T i m e - o u t

W S 0 ~ W S 2

W D T C l o c k S o u r c e

C l e a r W D T T y p e

C o n f i g u r a t i o n O p t i o n

C L R W D T 1 F l a g

C L R W D T 2 F l a g

1 o r 2 I n s t r u c t i o n s

C L R

f S Y S / 4

W D T O s c i l l a t o r

W D T C l o c k S o u r c e

C o n f i g u r a t i o n O p t i o n

Watchdog Timer

D A L R e g i s t e r

b 7

b 0

N o t u s e d , r e a d a s " 0 "

D 3

D 2

D 1

D 0

A u d i o o u t p u t

D A L R e g i s t e r

D A H R e g i s t e r

b 7

b 0

D 1 1 D 1 0 D 9

D 8

A u d i o o u t p u t

D A H R e g i s t e r

V o i c e C o n t r o l R e g i s t e r

D 7

D 6

D 5

D 4

V O L R e g i s t e r

b 7

b 0

N o t u s e d , r e a d a s " 0 "

V 0

V 1

V 2

V 3

V O L 2 V O L 1 V O L 0

P W M v o l u m e c o n t r o l

D A C v o l u m e c o n t r o l

W S 2

W D T S R e g i s t e r

b 7

b 0

W D T p r e s c a l e r r a t e s e l e c t

W S 2

W S 1

W S 0

W D T R a t e

1 : 1

1 : 2

1 : 4

1 : 8

1 : 1 6

1 : 3 2

1 : 6 4

1 : 1 2 8

N o t u s e d

W S 1 W S 0

Watchdog Timer Register

HT83F60 数据表(PDF) 43 Page - Holtek Semiconductor Inc

HT83F60 数据表(HTML) 43 Page - Holtek Semiconductor Inc

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