PXR40RM Datasheet, PDF (1030/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

Enhanced Queued Analog-to-Digital Converter (EQADC)
ADC0 Register Address: 0x04
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R0
W
GCC0
Reset 0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ADC1 Register Address: 0x04
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R0
W
GCC1
Reset 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 27-36. ADC0/1 Gain Calibration Constant Registers (ADC0/1_GCCR)
Table 27-26. ADC0/1_GCCR Field Descriptions
Field
0
1–14
GCC0/1
Description
Reserved
Gain calibration constant for ADC0/1. GCC0/1 contains the gain calibration constant used to fine-tune
ADC0/1 conversion results. It is a unsigned 15-bit fixed pointed value. The gain calibration constant is an
unsigned fixed point number expressed in the GCC_INT.GCC_FRAC binary format. The integer part of the
gain constant (GCC_INT) contains a single binary digit while its fractional part (GCC_FRAC) contains
fourteen digits. For details about the GCC data format refer to Section 27.7.6.6.2, MAC Unit and Operand
Data Format.
27.6.3.5 ADC0/1 Offset Calibration Constant Registers (ADC0_OCCR and
ADC1_OCCR)
The ADC0/1 Offset Calibration Constant Register (ADC0/1_OCCR) contains the offset calibration
constant used to fine-tune of ADC0/1 conversion results. The offset constant is a signed 14-bit integer
value. Refer to Section 27.7.6.6, ADC Calibration Feature, for details about the calibration scheme used
in the EQADC.
ADC0 Register Address: 0x05
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R0
0
W
OCC0
Reset 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ADC1 Register Address: 0x05
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R0
0
OCC1
W
Reset 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 27-37. ADC0/1 Offset Calibration Constant Registers (ADC0/1_OCCR)
27-48
PXR40 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor