PIC18F87K90 Datasheet, PDF (224/566 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC18F87K90 FAMILY
17.1.3
ALRMVALH AND ALRMVALL
REGISTER MAPPINGS
REGISTER 17-14: ALRMMNTH: ALARM MONTH VALUE REGISTER⁽¹⁾
U-0
—
bit 7
U-0
U-0
R/W-x
R/W-x
R/W-x
—
—
MTHTEN0 MTHONE3 MTHONE2
R/W-x
MTHONE1
R/W-x
MTHONE0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-5
bit 4
bit 3-0
Unimplemented: Read as ‘0’
MTHTEN0: Binary Coded Decimal Value of Month’s Tens Digit bits
Contains a value of ‘0’ or ‘1’.
MTHONE<3:0>: Binary Coded Decimal Value of Month’s Ones Digit bits
Contains a value from 0 to 9.
Note 1: A write to this register is only allowed when RTCWREN = 1.
REGISTER 17-15: ALRMDAY: ALARM DAY VALUE REGISTER⁽¹⁾
U-0
—
bit 7
U-0
R/W-x
R/W-x
R/W-x
R/W-x
—
DAYTEN1 DAYTEN0 DAYONE3 DAYONE2
R/W-x
DAYONE1
R/W-x
DAYONE0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-6
bit 5-4
bit 3-0
Unimplemented: Read as ‘0’
DAYTEN<1:0>: Binary Coded Decimal Value of Day’s Tens Digit bits
Contains a value from 0 to 3.
DAYONE<3:0>: Binary Coded Decimal Value of Day’s Ones Digit bits
Contains a value from 0 to 9.
Note 1: A write to this register is only allowed when RTCWREN = 1.
DS39957B-page 224
Preliminary
 2010 Microchip Technology Inc.