Datasheet

PIC18F46J11 FAMILY
DS39932D-page 230  2011 Microchip Technology Inc.
REGISTER 17-2: RTCCAL: RTCC CALIBRATION REGISTER (BANKED F3Eh)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CAL7 CAL6 CAL5 CAL4 CAL3 CAL2 CAL1 CAL0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7-0 CAL<7:0>: RTC Drift Calibration bits
01111111 = Maximum positive adjustment; adds 508 RTC clock pulses every minute
.
.
.
00000001 = Minimum positive adjustment; adds four RTC clock pulses every minute
00000000 = No adjustment
11111111 = Minimum negative adjustment; subtracts four RTC clock pulses every minute
.
.
.
10000000 = Maximum negative adjustment; subtracts 512 RTC clock pulses every minute
REGISTER 17-3: PADCFG1: PAD CONFIGURATION REGISTER (BANKED F3Ch)
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
— — — — — RTSECSEL1
(1)
RTSECSEL0
(1)
PMPTTL
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7-3 Unimplemented: Read as ‘0’
bit 2-1 RTSECSEL<1:0>: RTCC Seconds Clock Output Select bits
(1)
11 = Reserved, do not use
10 = RTCC source clock is selected for the RTCC pin (pin can be INTRC or T1OSC, depending on the
RTCOSC (CONFIG3L<1>) setting)
01 = RTCC seconds clock is selected for the RTCC pin
00 = RTCC alarm pulse is selected for the RTCC pin
bit 0 PMPTTL: PMP Module TTL Input Buffer Select bit
1 = PMP module uses TTL input buffers
0 = PMP module uses Schmitt input buffers
Note 1: To enable the actual RTCC output, the RTCOE (RTCCFG<2>) bit must be set.