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R01UH0336EJ0102 Rev.1.02
Page 1335 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 23 A/D Converter
(4)
ADCAnDBiCRL – A/D Converter CGi DMA Buffer Register
(Conversion Result)
This register holds the result of the latest A/D conversion of CGi. It allows the
A/D conversion results of all the channels of CGi to be read. This register
reflects the settings of ADCAnDBiCR[15:00].
Access
This register is read-only and can be read in 16-bit units.
Address
<ADCAn_base1> + D0
H
+ i
4
H
Initial value
0000
H
This register is initialized by any reset.
Note 1.
The value of this register is:
•Retained until the A/D conversion result is overwritten by the next A/D
conversion result when ADCAnCTL1.ADCAnRCL = 0.
•Cleared after the A/D conversion results in ADCAnDBiCR and
ADCAnDBiCRL is read when ADCAnCTL1.ADCAnRCL = 1.
Note 2.
The result of the diagnostic A/D conversion of an internal reference voltage is
stored in ADCAnDGCR, not in ADCAnLCR, ADCAnCmCR (refer to Section
23.4.5 (5), ADCAnDGCR – A/D Converter Diagnosis Conversion Result
Register).
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ADCAnDBiCRL[15:00]
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Table 23-25
ADCAnDBiCRL Register Contents
Bit Position
Bit Name
Function
15 to 0
ADCAn
DBiCRL
[15:00]
Indicates the result of the A/D conversion.
The resolution and alignment depend on ADCAnCTL1.ADCAnCTYP and
ADCAnCTL1.ADCAnCRAC as follows:
ADCAn
CTL1.
ADCAn
CTYP
ADCAn
CTL1.
ADCAn
CRAC
Resolution and
Alignment
Bit Position of A/D
Conversion Result Value
0
0
12-bit resolution and right-
aligned
[11:00] in
ADCAnDBiCR[15:00]
0
1
12-bit resolution and left-
aligned
[15:04] in
ADCAnDBiCR[15:00]
1
0
10-bit resolution and right-
aligned
[09:00] in
ADCAnDBiCR[15:00]
1
1
10-bit resolution and left-
aligned
[15:06] in
ADCAnDBiCR[15:00]