HT45R34 Holtek Semiconductor, HT45R34 Datasheet - Page 17

• Manufacturer Part Number: HT45R34
• Description: C/R to F Type 8-Bit OTP MCU
• Manufacturer: Holtek Semiconductor

www.DataSheet4U.com
Analog Switch
There are 12 analog switch lines in the microcontroller for RC1~RC12, and a corresponding Analog Switch control reg-
ister, which is mapped to the data memory of 1AH .
Rev. 1.20
Bit No.
0~4
5~7
ASON
Label
Defines the analog switch for RC1~RC12 which is on. ASON=
00000b= Analog switch 1 on, other analog switch off
00001b= Analog switch 2 on, other analog switch off
00010b= Analog switch 3 on, other analog switch off
00011b= Analog switch 4 on, other analog switch off
00100b= Analog switch 5 on, other analog switch off
00101b= Analog switch 6 on, other analog switch off
00110b= Analog switch 7 on, other analog switch off
00111b= Analog switch 8 on, other analog switch off
01000b= Analog switch 9 on, other analog switch off
01001b= Analog switch 10 on, other analog switch off
01010b= Analog switch 11 on, other analog switch off
01011b= Analog switch 12 on, other analog switch off
01100b= All analog switch off
01101b= All analog switch off
01110b= All analog switch off
01111b= All analog switch off
1xxxxb= All analog switch off and RC OSC always off.
Unused bit, read as 0
ASCR (1AH) Register
Analog Switch
17
Function
October 15, 2007
HT45R34