HT86B40 datasheet(54/79 Pages) HOLTEK

54 / 79 page

HT86BXX/HT86BRXX

Rev. 1.60

October 20, 2009

Analog Switch

There are 8 analog switch lines in the microcontroller, labeled as K0 ~ K7, and the Analog Switch control register, which

is mapped to the data memory by option. All of these Analog Switch lines can be used together with the external RC

Oscillation Converter for C/R-F input keys.

A S C R R e g i s t e r

A n a l o g S w i t c h S e l e c t

b 7

b 0

K 0 o n , o t h e r s o f f

K 1 o n , o t h e r s o f f

K 2 o n , o t h e r s o f f

K 3 o n , o t h e r s o f f

K 4 o n , o t h e r s o f f

K 5 o n , o t h e r s o f f

K 6 o n , o t h e r s o f f

K 7 o n , o t h e r s o f f

A l l o f f , O S C o f f

U n d e f i n e d , r e a d a s z e r o

A S O N 3

A S O N 2 A S O N 1 A S O N 0

A S O N 2

A S O N 1

A S O N 0

Analog Switch Control Register

- ASCR

T . G . 2

T . G . 3

T . G . 4

T . G . 5

T . G . 6

T . G . 7

K 0

K 1

K 2

K 3

K 4

K 5

K 6

K 7

R C O U T

R R

R C

C C

T . G . 1

A S O N

T i m e r 4

T . G . 8

Analog Switch

HT86B40 データシート(PDF) 54 Page - Holtek Semiconductor Inc

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