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MC80F0104/0204
Preliminary
66
Mar. 2005 Ver 0.2
Figure 14-4 A/D Converter Control & Result Register
BTCL
7
6
5
4
3
2
1
0
ADEN
ADST
A/D status bit
Analog input channel select
INITIAL VALUE: 0000 0001
B
ADDRESS: 0EF
H
ADCM
ADSF
A/D converter Clock Source Divide Ratio Selection bit
0: Clock Source f
PS
1: Clock Source f
PS
÷
2
R/W
R/W
R/W
R/W
R/W
R
0000: Channel 0 (AN0)
0001: Channel 1 (AN1)
0010: Channel 2 (AN2)
0011: Channel 3 (AN3)
0110: Channel 6 (AN6)
0111: Channel 7 (AN7)
1000 ~ 1101: Not available
0: A/D conversion is in progress
1: A/D conversion is completed
A/D start bit
Setting this bit starts an A/D conversion.
After one cycle, bit is cleared to “0” by hardware.
ADS1 ADS0
ADS3 ADS2
ADCK
1110: Channel 14 (AN14)
A/D converter Enable bit
0: A/D converter module turn off and current is not flow.
1: Enable A/D converter
INITIAL VALUE: Undefined
ADDRESS: 0F1
H
ADCRL
A/D Conversion Low Data
R/W
R/W
BTCL
7
6
5
4
3
2
1
0
PSSEL1
ADCRH
-
-
ADC8 -
PSSEL0
INITIAL VALUE: 010- ----
B
ADDRESS: 0F0
H
A/D Conversion High Data
A/D Conversion Clock (f
PS
) Source Selection
00: f
XIN
÷
4
01: f
XIN
÷
8
10: f
XIN
÷
16
11: f
XIN
÷
32
BTCL
7
6
5
4
3
2
1
0
-
-
-
R
R
W
W
R
R
R
R
R
R
R
R
ADCK
PSSEL1
PSSEL0
PS Clock Selection
0
0
0
PS = f
XIN
÷
4
0
0
1
PS = f
XIN
÷
8
0
0
0
PS = f
XIN
÷
16
0
0
1
PS = f
XIN
÷
32
1
1
0
PS = f
XIN
÷
8
1
1
1
PS = f
XIN
÷
16
1
1
0
PS = f
XIN
÷
32
1
1
1
PS = f
XIN
÷
64
PS : Conversion Clock
ADC 8-bit Mode select bit
0: 10-bit Mode
1: 8-bit Mode
W
0100: Channel 4 (AN4)
0101: Channel 5 (AN5)
1111: Channel 15 (AN15)
Summary of Contents for MC80C0104
Page 108: ...MC80F0104 0204 Preliminary 104 Mar 2005 Ver 0 2 25 Emulator EVA Board Setting...
Page 115: ...APPENDIX...
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Page 124: ...viii Mar 2005 Ver 0 2 MC80F0104 0204 Preliminary...