PXN20RM Datasheet, PDF (1120/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

Analog-to-Digital Converter (ADC)
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 34-38. External Channel n Data Register (EXTDATAREGn)
0
0
Table 34-40. EXTDATAREGn 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 64 – 95 converted data.
34-40
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor