HT46R63 Holtek Semiconductor Inc., HT46R63 Datasheet - Page 21

• Manufacturer Part Number: HT46R63
• Description: Ht46r63/ht46c63 -- A/d With Lcd Type 8-bit Mcu
• Manufacturer: Holtek Semiconductor Inc.

Note:
Rev. 2.30
Bit No.
Bit No.
3~6
0
1
2
3
4
5
6
7
0
1
2
7
Bit7
D7
* This bit is 0 during reset.
ADCS0
ADCS1
START Starts the A/D conversion. (0 1 0= start; 0 1= Reset A/D converter and set EOCB to 1 )
CMPC
EOCB
Label
ACS0
ACS1
ACS2
PCR0
PCR1
PCR2
Label
TEST
Bit6
D6
ACS2, ACS1, ACS0: A/D channel selection
0,0,0: AN0
0,0,1: AN1
0,1,0: AN2
0,1,1: AN3
1,0,0: AN4
1,0,1: AN5
1,1,0: AN6
1,1,1: AN7
PCR2, PCR1, PCR0: PB7~PB0 pad functions
0,0,0: PB7, PB6, PB5, PB4, PB3, PB2, PB1, PB0
0,0,1: PB7, PB6, PB5, PB4, PB3, PB2, PB1, AN0
0,1,0: PB7, PB6, PB5, PB4, PB3, PB2, AN1, AN0
0,1,1: PB7, PB6, PB5, PB4, PB3, AN2, AN1, AN0
1,0,0: PB7, PB6, PB5, PB4, AN3, AN2, AN1, AN0
1,0,1: PB7, PB6, PB5, AN4, AN3, AN2, AN1, AN0
1,1,0: PB7, PB6, AN5, AN4, AN3, AN2, AN1, AN0
1,1,1: AN7, AN6, AN5, AN4, AN3, AN2, AN1, AN0
Indicates end of A/D conversion. (0 = end of A/D conversion)
Each time bits 3~5 change state the A/D should be initialized by issuing a START signal, other-
wise the EOCB flag may have an undefined condition. See Important note for A/D initialization .
ADCS1, ADCS0: Selects the A/D converter clock source
0,0: f
0,1: f
1,0: f
1,1: Undefined
Comparator control (*)
0: Disable
1: Enable
Unused bit, read as 0
For test mode used only
SYS
SYS
SYS
/2
/8
/32
Bit5
D5
ADCR (22H) Register
ACSR (23H) Register
ADR (21H) Register
Bit4
D4
21
Functions
Functions
Bit3
D3
Bit2
D2
HT46R63/HT46C63
Bit1
D1
March 22, 2006
Bit0
D0