Analog-to-Digital Converter (ADC12B12CV1) Block Description
MC9S12XHY-Family Reference Manual, Rev. 1.01
Freescale Semiconductor
327
Table 10-9. Examples of ideal decimal ATD Results
Input Signal
V
RL
= 0 Volts
V
RH
= 5.12 Volts
8-Bit
Codes
(resolution=20mV)
10-Bit
Codes
(resolution=5mV)
12-Bit
Codes
(transfer curve has
1.25mV offset)
(resolution=1.25mV)
5.120 Volts
...
0.022
0.020
0.018
0.016
0.014
0.012
0.010
0.008
0.006
0.004
0.003
0.002
0.000
255
...
1
1
1
1
1
1
1
0
0
0
0
0
0
1023
...
4
4
4
3
3
2
2
2
1
1
0
0
0
4095
...
17
16
14
12
11
9
8
6
4
3
2
1
0
Table 10-10. Conversion Sequence Length Coding
S8C
S4C
S2C
S1C
Number of Conversions
per Sequence
0
0
0
0
12
0
0
0
1
1
0
0
1
0
2
0
0
1
1
3
0
1
0
0
4
0
1
0
1
5
0
1
1
0
6
0
1
1
1
7
1
0
0
0
8
1
0
0
1
9
1
0
1
0
10
1
0
1
1
11
1
1
0
0
12
1
1
0
1
12
1
1
1
0
12
1
1
1
1
12
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