XC886/888CLM
Analog-to-Digital Converter
User’s Manual
16-7
V1.3, 2010-02
ADC, V 1.0
16.3
Low Power Mode
The ADC module may be disabled, either partially or completely, when no conversion is
required in order to reduce power consumption.
The analog part of the ADC module may be disabled by resetting the ANON bit. This
causes the generation of
f
ADCI
to be stopped and results in a reduction in power
consumption. Conversions are possible only by enabling the analog part (ANON = 1)
again. The wake-up time is approximately 100 ns.
Refer to
for register description of disabling the ADC analog part.
If the ADC functionality is not required at all, it can be completely disabled by gating off
its clock input (
f
ADC
) for maximal power reduction. This is done by setting bit ADC_DIS
for details on peripheral clock
management.
PMCON1
Power Mode Control Register 1
(B5
H
)
Reset Value: 00
H
7
6
5
4
3
2
1
0
0
CDC_DIS
CAN_DIS
MDU_DIS
T2_DIS
CCU_DIS
SSC_DIS
ADC_DIS
r
rw
rw
rw
rw
rw
rw
rw
Field
Bits
Type Description
ADC_DIS
0
rw
ADC Disable Request. Active high.
0
B
ADC is in normal operation (default)
1
B
Request to disable the ADC
0
7
r
Reserved
Returns 0 if read; should be written with 0.
*