HT45R37V datasheet(21/90 Pages) HOLTEK

21 / 90 page

HT45R37V

Rev. 1.00

October 20, 2009

M I S C R e g i s t e r

b 7

W D T E N 0

b 0

W D T E N 1

W a t c h d o g T i m e r E n a b l e C o n t r o l

- d e s c r i b e d e l s e w h e r e

P A 0 O p e n D r a i n C o n t r o l

1 : e n a b l e

0 : d i s a b l e

P A 1 O p e n D r a i n C o n t r o l

1 : e n a b l e

0 : d i s a b l e

P A 2 O p e n D r a i n C o n t r o l

1 : e n a b l e

0 : d i s a b l e

P A 3 O p e n D r a i n C o n t r o l

1 : e n a b l e

0 : d i s a b l e

O D E 0

W D T E N 2

W D T E N 3

O D E 1

O D E 2

O D E 3

PA0~PA3 Open Drain Control

- MISC

V D D

W a k e - u p S e l e c t

S y s t e m W a k e - u p

R e a d D a t a R e g i s t e r

C K

C o n t r o l B i t

D a t a B u s

W r i t e C o n t r o l R e g i s t e r

C h i p R e s e t

R e a d C o n t r o l R e g i s t e r

W r i t e D a t a R e g i s t e r

D a t a B i t

I / O p i n

P A o n l y

W e a k

P u l l - u p

P u l l - H i g h

O p t i o n

Generic Input/Output Structure

V D D

R e a d D a t a R e g i s t e r

C o n t r o l B i t

D a t a B u s

W r i t e C o n t r o l R e g i s t e r

C h i p R e s e t

R e a d C o n t r o l R e g i s t e r

W r i t e D a t a R e g i s t e r

D a t a B i t

A / D I n p u t P o r t

A C S 2 ~ A C S 0

T o A / D C o n v e r t e r

P C R 2

P C R 1

P C R 0

W e a k

P u l l - u p

A n a l o g

I n p u t

S e l e c t o r

C K

P u l l - H i g h

R e g i s t e r

S e l e c t

A/D Input/Output Structure

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