Datasheet
MCP79410/MCP79411/MCP79412
DS20002266E-page 32 2010-2013 Microchip Technology Inc.
8.6.2 POWER-UP TIME-STAMP
REGISTERS
Note: It is strongly recommended that the time saver function only be used when the oscillator is running. This
will ensure accurate functionality.
REGISTER 8-9: MINUTES 0X1C
U-0 R/W-0 R/W-0
— 10 Minutes Minutes
bit 7 bit 6 bit 4 bit 3 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 clear “X” = Bit is unknown
bit 7 Unimplemented: Read as ‘0’
bit 6-4 10 MINUTES<2:0>: Binary-Coded Decimal Value of Minute’s Tens Digit
Contains a value from 0 to 5
bit 3-0 MINUTES<3:0>: Binary-Coded Decimal Value of Minute’s Ones Digit
Contains a value from 0 to 9
REGISTER 8-10: HOURS 0X1D
U-0 R/W-0 R/W-0
— 12/24 10 Hour
AM/PM
10 Hour Hour
bit 7 bit 6 bit 5 bit 4 bit 3 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 clear “X” = Bit is unknown
bit 7 Unimplemented: Read as ‘0’
bit 6 12/24
: This is a copy of the status of the bit in register 0x03:6 at the time of the event
bit 5 10 HOUR AM/PM
bit 4 10 HOUR
bit 3-0 HOUR<3:0>: Binary-Coded Decimal Value of Hour’s Ones Digit
Contains a value from 0 to 9