PIC16F1938_13 Datasheet, PDF (321/488 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver

PIC16(L)F1938/9
26.9 Register Definitions: CPS Control
REGISTER 26-1: CPSCON0: CAPACITIVE SENSING CONTROL REGISTER 0
R/W-0/0
R/W-0/0
U-0
CPSON
CPSRM
—
bit 7
U-0
R/W-0/0
R/W-0/0
R-0/0
—
CPSRNG<1:0>
CPSOUT
R/W-0/0
T0XCS
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
bit 7
bit 6
bit 5-4
bit 3-2
bit 1
bit 0
CPSON: CPS Module Enable bit
1 = CPS module is enabled
0 = CPS module is disabled
CPSRM: Capacitive Sensing Reference Mode bit
1 = Capacitive Sensing module is in Variable Voltage Reference mode.
0 = Capacitive Sensing module is in Fixed Variable Voltage Reference mode.
Unimplemented: Read as ‘0’
CPSRNG<1:0>: Capacitive Sensing Current Range
If CPSRM = 0 (Fixed Voltage Reference mode):
00 = Oscillator is off
01 = Oscillator is in Low-Current Range
10 = Oscillator is in Medium-Current Range
11 = Oscillator is in High-Current Range
If CPSRM = 1 (Variable Voltage Reference mode):
00 = Oscillator is on. Noise Detection mode.
01 = Oscillator is in Low-Current Range.
10 = Oscillator is in Medium-Current Range.
11 = Oscillator is in High-Current Range.
CPSOUT: Capacitive Sensing Oscillator Status bit
1 = Oscillator is sourcing current (Current flowing out of the pin)
0 = Oscillator is sinking current (Current flowing into the pin)
T0XCS: Timer0 External Clock Source Select bit
If TMR0CS = 1:
The T0XCS bit controls which clock external to the core/Timer0 module supplies Timer0:
1 = Timer0 clock source is the capacitive sensing oscillator, CPSCLK
0 = Timer0 clock source is the T0CKI pin
If TMR0CS = 0:
Timer0 clock source is controlled by the core/Timer0 module and is FOSC/4
 2011-2013 Microchip Technology Inc.
DS40001574C-page 321