Microchip Technology MA240017 数据表
PIC24F16KA102 FAMILY
DS39927C-page 160
2008-2011 Microchip Technology Inc.
19.2.5
RTCVAL REGISTER MAPPINGS
REGISTER 19-4:
YEAR: YEAR VALUE REGISTER
(
U-0
U-0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
—
—
bit 15
bit 8
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
YRTEN3
YRTEN2
YRTEN2
YRTEN1
YRONE3
YRONE2
YRONE1
YRONE0
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 15-8
Unimplemented:
Read as ‘0’
bit 7-4
YRTEN<3:0>:
Binary Coded Decimal Value of Year’s Tens Digit bits
Contains a value from 0 to 9.
bit 3-0
YRONE<3:0>:
Binary Coded Decimal Value of Year’s Ones Digit bits
Contains a value from 0 to 9.
Note 1:
A write to the YEAR register is only allowed when RTCWREN = 1.
REGISTER 19-5:
MTHDY: MONTH AND DAY 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 15
bit 8
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 15-13
Unimplemented:
Read as ‘0’
bit 12
MTHTEN0:
Binary Coded Decimal Value of Month’s Tens Digit bit
Contains a value of ‘0’ or ‘1’.
bit 11-8
MTHONE<3:0>:
Binary Coded Decimal Value of Month’s Ones Digit bits
Contains a value from 0 to 9.
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.