S9S12XS256J0CAL Datasheet, PDF (283/738 Pages) Freescale Semiconductor, Inc – Microcontrollers

Analog-to-Digital Converter (ADC12B16CV1)
Table 10-10. 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
255
...
...
1023
...
0.022
1
4
0.020
1
4
0.018
1
4
0.016
1
3
0.014
1
3
0.012
1
2
0.010
1
2
0.008
0
2
0.006
0
1
0.004
0
1
0.003
0
0
0.002
0
0
0.000
0
0
Table 10-11. Conversion Sequence Length Coding
4095
...
17
16
14
12
11
9
8
6
4
3
2
1
0
S8C
S4C
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
S2C
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
S1C
Number of Conversions
per Sequence
0
16
1
1
0
2
1
3
0
4
1
5
0
6
1
7
0
8
1
9
0
10
1
11
0
12
1
13
0
14
1
15
Table 10-12. ATD Behavior in Freeze Mode (Breakpoint)
FRZ1
0
0
1
FRZ0
0
1
0
Behavior in Freeze Mode
Continue conversion
Reserved
Finish current conversion, then freeze
S12XS Family Reference Manual, Rev. 1.13
Freescale Semiconductor
283