PXD20RM Datasheet, PDF (161/1628 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

Address: Base + 0x0098 (CTR1)
Base + 0x009C (CTR2)
Access: User read/write
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R
0 _OFFSHIFT 0 _INPCMP 0
W
[0:1]
[0:1]
INPSAMP[0:7]
Reset 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 1
Figure 5-17. Conversion timing registers CTR[1..2]
Table 5-15. Conversion timing registers CTR[1..2] field descriptions
Field
0:15
16
17
18:19
20
21:22
23
24:31
Description
Reserved
Write of any value has no effect, read value is always 0.
INPLATCH
Configuration bit for latching phase duration
Reserved
Write of any value has no effect, read value is always 0.
OFFSHIFT[0:1]
Configuration for offset shift characteristic
00 No shift (that is the transition between codes 000h and 001h) is reached when the A_VIN (analog input
voltage) is equal to 1 LSB.
01 Transition between code 000h and 001h is reached when the A_VIN is equal to1/2 LSB
10 Transition between code 00h and 001h is reached when the A_VIN is equal to 0
11 Not used
Reserved
Write of any value has no effect, read value is always 0.
INPCMP[0:1]
Configuration bits for comparison phase duration
Reserved
Write of any value has no effect, read value is always 0.
INPSAMP[0:7]
Configuration bits for sampling phase duration
Freescale Semiconductor
PXD20 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
5-19