Microchip Technology MCU PIC PIC18F87K22-I/PTRSL TQFP-80 MCP PIC18F87K22-I/PTRSL Data Sheet
Product codes
PIC18F87K22-I/PTRSL
2009-2011 Microchip Technology Inc.
DS39960D-page 233
PIC18F87K22 FAMILY
REGISTER 18-8:
MONTH: MONTH VALUE REGISTER
(
)
U-0
U-0
U-0
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
—
—
—
MTHTEN0
MTHONE3
MTHONE2
MTHONE1
MTHONE0
bit 7
bit 0
Legend:
R = Readable 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 7-5
Unimplemented:
Read as ‘0’
bit 4
MTHTEN0:
Binary Coded Decimal Value of Month’s Tens Digit bit
Contains a value of 0 or 1.
bit 3-0
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 18-9:
DAY: DAY VALUE REGISTER
(
)
U-0
U-0
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
—
—
DAYTEN1
DAYTEN0
DAYONE3
DAYONE2
DAYONE1
DAYONE0
bit 7
bit 0
Legend:
R = Readable 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 7-6
Unimplemented:
Read as ‘0’
bit 5-4
DAYTEN<1:0>:
Binary Coded Decimal value of Day’s Tens Digit bits
Contains a value from 0 to 3.
bit 3-0
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.
REGISTER 18-10: WEEKDAY: WEEKDAY VALUE REGISTER
(
)
U-0
U-0
U-0
U-0
U-0
R/W-x
R/W-x
R/W-x
—
—
—
—
—
WDAY2
WDAY1
WDAY0
bit 7
bit 0
Legend:
R = Readable 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 7-3
Unimplemented:
Read as ‘0’
bit 2-0
WDAY<2:0>:
Binary Coded Decimal Value of Weekday Digit bits
Contains a value from 0 to 6.
Note 1:
A write to this register is only allowed when RTCWREN = 1.