PXN20RM Datasheet, PDF (1119/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

Field
RESULT
CDATA
Analog-to-Digital Converter (ADC)
Table 34-38. PRECDATAREGn Field Descriptions
Description
This bit reflects the mode of conversion for the corresponding channel.
00 Data is a result of normal conversion mode.
01 Data is a result of injected conversion mode.
10 Data is a result of CTU conversion mode.
11 reserved
Channel 0 – 31 converted data.
34.3.2.36 Internal Channel n Data Register (INTDATAREGn)
The INTDATAREGn registers provide conversion results for the group 1 channel (channels 32–63) data
registers. Each data register gives also some information regarding the corresponding result. One
INTDATAREGn register is provided for each channel.
Address: See Table 34-1.
Access: User read/write
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
R
0
0
0
0
0
0
0
0
0
0
0
0
VALID OVERW RESULT
W
Reset 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
R
0
W
Reset 0
Field
VALID
OVERW
RESULT
CDATA
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
0
0
0
0
0
CDATA
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 34-37. Internal Channel n Data Register (INTDATAREGn)
0
0
Table 34-39. INTDATAREGn Field Descriptions
Description
Used to notify when the data is valid (a new value has been written). It is automatically cleared when data is
read.
Overwrite data. Used to notify when a conversion data is overwritten by a newer result.The new data is written
or discarded according to the OWREN bit of MCR register.
This bit reflects the mode of conversion for the corresponding channel.
00 Data is a result of normal conversion mode.
01 Data is a result of injected conversion mode.
10 Data is a result of CTU conversion mode.
11 reserved
Channel 32 – 63 converted data.
34.3.2.37 External Channel n Data Register (EXTDATAREGn)
The EXTDATAREGn registers provide conversion results for the group 2 channel (channels 64–95) data
registers. Each data register gives also some information regarding the corresponding result. One
EXTDATAREGn register is provided for each channel.
Freescale Semiconductor
PXN20 Microcontroller Reference Manual, Rev. 1
34-39