Datasheet

PIC18F47J13 FAMILY
DS39974A-page 58 Preliminary  2010 Microchip Technology Inc.
4.6.9 DEEP SLEEP MODE REGISTERS
Deep Sleep mode registers are provided in
Register 4-1 through Register 4-6.
REGISTER 4-1: DSCONH: DEEP SLEEP CONTROL HIGH BYTE REGISTER (BANKED F4Dh)
R/W-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0
DSEN
(1)
— — — — r DSULPEN RTCWDIS
bit 7 bit 0
Legend: r = Reserved bit
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 DSEN: Deep Sleep Enable bit
(1)
1 = Deep Sleep mode is entered on a SLEEP command
0 = Sleep mode is entered on a SLEEP command
bit 6-3 Unimplemented: Read as ‘0’
bit 2 Reserved: Maintain as ‘0’
bit 1 DSULPEN: Ultra Low-Power Wake-up Module Enable bit
1 = ULPWU module is enabled in Deep Sleep
0 = ULPWU module is disabled in Deep Sleep
bit 0 RTCWDIS: RTCC Wake-up Disable bit
1 = Wake-up from RTCC is disabled
0 = Wake-up from RTCC is enabled
Note 1: In order to enter Deep Sleep, Sleep must be executed within 2 instruction cycles after setting DSEN.
REGISTER 4-2: DSCONL: DEEP SLEEP LOW BYTE CONTROL REGISTER (BANKED F4Ch)
U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0
(1)
R/W-0
(1)
— — — — — ULPWDIS DSBOR RELEASE
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 ULPWDIS: Ultra Low-Power Wake-up Disable bit
1 = ULPWU wake-up source is disabled
0 = ULPWU wake-up source is enabled (must also set DSULPEN = 1)
bit 1 DSBOR: Deep Sleep BOR Event Status bit
1 = DSBOREN was enabled and V
DD dropped below the DSBOR arming voltage during Deep Sleep,
but did not fall below V
DSBOR
0 = DSBOREN was disabled or VDD did not drop below the DSBOR arming voltage during Deep
Sleep
bit 0 RELEASE: I/O Pin State Release bit
Upon waking from Deep Sleep, the I/O pins maintain their previous states. Clearing this bit will
release the I/O pins and allow their respective TRIS and LAT bits to control their states.
Note 1: This is the value when V
DD is initially applied.