HT46C63 datasheet(24/44 Pages) HOLTEK

24 / 44 page

HT46R63/HT46C63

Rev. 1.90

May 17, 2004

6 4 t A D

A / D c o n v e r s i o n t i m e

6 4 t A D

A / D c o n v e r s i o n t i m e

0 0 0 B

1 0 0 B

0 1 0 B

0 0 0 B

S T A R T

E O C B

P C R 2 ~ P C R 0

A C S 2 ~ A C S 0

P o w e r - o n

R e s e t

E n d o f A / D

c o n v e r s i o n

1 : D e f i n e P B c o n f i g u r a t i o n

2 : S e l e c t a n a l o g c h a n n e l

1 . P B p o r t s e t u p a s I / O s

2 . A / D c o n v e r t e r i s p o w e r e d o f f

t o r e d u c e p o w e r c o n s u m p t i o n

A / D c l o c k m u s t b e f S Y S / 2 , f S Y S / 8 o r f S Y S / 3 2

N o t e :

S t a r t o f A / D

c o n v e r s i o n

R e s e t A / D

c o n v e r t e r

1 0 0 B

0 0 0 B

S t a r t o f A / D

c o n v e r s i o n

R e s e t A / D

c o n v e r t e r

A / D s a m p l i n g t i m e

3 2 t A D

M i n i m u m o n e i n s t r u c t i o n c y c l e n e e d e d

d o n ' t c a r e

A / D s a m p l i n g t i m e

3 2 t A D

E n d o f A / D

c o n v e r s i o n

A/D Conversion Timing

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: fSYS/2

1 ~

fSYS/2

8). The frequency source of the PWM counter co-

mes from fSYS. The PWM register is an eight bits regis-

ter. The waveforms of PWM outputs are as shown.

Once the PDi (i=0~3) is selected as the PWMi output

and the output function of PDi is enabled, writing

²1² to

PDi data register will enable the PWMi output function.

Otherwise the PDi will stay at

²0². The PWM modulation

frequency, PWM cycle frequency and PWM cycle duty

are summarized in the following table.

PWMi Modulation

Frequency

PWMi Cycle

Frequency

PWMi Cycle

Duty

fSYS/64

fSYS/256

[PWM]/256

f S Y S / 2

P W M

[ P W M ] = 1 0 0

[ P W M ] = 1 0 1

P W M

[ P W M ] = 1 0 2

P W M

[ P W M ] = 1 0 3

P W M

P W M c y c l e : 2 5 6 / f S Y S

2 5 / 6 4

2 6 / 6 4

2 5 / 6 4

2 6 / 6 4

2 5 / 6 4

2 6 / 6 4

2 5 / 6 4

2 6 / 6 4

M o d u l a t i o n c y c l e 0

P W M m o d u l a t i o n p e r i o d : 6 4 / f S Y S

M o d u l a t i o n c y c l e 1

M o d u l a t i o n c y c l e 2

M o d u l a t i o n c y c l e 3

M o d u l a t i o n c y c l e 0

PWM Mode

HT46C63 Datasheet(PDF) 24 Page - Holtek Semiconductor Inc

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