PIC18F25K80 MICROCHIP [Microchip Technology], PIC18F25K80 Datasheet - Page 258

• Manufacturer Part Number: PIC18F25K80
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F66K80 FAMILY
18.10 Operation During Sleep/Idle Modes
18.10.1
When the device enters any Sleep mode, the CTMU
module current source is always disabled. If the CTMU
is performing an operation that depends on the current
source when Sleep mode is invoked, the operation may
not
measurements may return erroneous values.
18.10.2
The behavior of the CTMU in Idle mode is determined
by the CTMUSIDL bit (CTMUCONH<5>). If CTMUSIDL
is cleared, the module will continue to operate in Idle
mode. If CTMUSIDL is set, the module’s current source
is disabled when the device enters Idle mode. In this
TABLE 18-1:
DS39977C-page 258
CTMUCONH CTMUEN
CTMUCONL EDG2POL EDG2SEL1 EDG2SEL0 EDG1POL EDG1SEL1 EDG1SEL0 EDG2STAT EDG1STAT
CTMUICON
PIR3
PIE3
IPR3
PADCFG1
Legend: — = unimplemented, read as ‘ 0 ’. Shaded cells are not used during ECCP operation.
Name
terminate
SLEEP MODE
IDLE MODE
ITRIM5
RDPU
correctly.
Bit 7
REGISTERS ASSOCIATED WITH CTMU MODULE
—
—
—
Capacitance
ITRIM4
REPU
Bit 6
—
—
—
—
CTMUSIDL
ITRIM3
RC2IE
RC2IP
RC2IF
RFPU
Bit 5
and
time
Preliminary
ITRIM2
RGPU
TGEN
TX2IF
TX2IE
TX2IP
Bit 4
case, if the module is performing an operation when
Idle mode is invoked, the results will be similar to those
with Sleep mode.
18.11 Effects of a Reset on CTMU
Upon Reset, all registers of the CTMU are cleared. This
disables the CTMU module, turns off its current source
and returns all configuration options to their default set-
tings. The module needs to be re-initialized following
any Reset.
If the CTMU is in the process of taking a measurement
at the time of Reset, the measurement will be lost. A
partial charge may exist on the circuit that was being
measured, which should be properly discharged before
the CTMU makes subsequent attempts to make a
measurement. The circuit is discharged by setting and
clearing the IDISSEN bit (CTMUCONH<1>) while the
A/D Converter is connected to the appropriate channel.
CTMUIF
CTMUIE
CTMUIP
EDGEN
ITRIM1
Bit 3
—
EDGSEQEN
CCP2IE
CCP2IP
CCP2IF
ITRIM0
Bit 2
—
 2011 Microchip Technology Inc.
IDISSEN
CCP1IF
CCP1IE
CCP1IP
IRNG1
Bit 1
—
CTMUDS
CTTRIG
IRNG0
Bit 0
—
—
—