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MCP7940N-E/MS датащи(PDF) 33 Page - Microchip Technology

номер детали MCP7940N-E/MS
подробное описание детали  Battery-Backed I2C Real-Time Clock/Calendar with SRAM
PDF  58 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP7940N-E/MS датащи(HTML) 33 Page - Microchip Technology

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 2011-2022 Microchip Technology Inc. and its subsidiares
DS20005010J-page 33
MCP7940N
REGISTER 5-16:
PWRxxMIN: POWER-DOWN/POWER-UP TIME-STAMP MINUTES VALUE
REGISTER (ADDRESSES 0x18/0x1C)
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
—
MINTEN2
MINTEN1
MINTEN0
MINONE3
MINONE2
MINONE1
MINONE0
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 clear
x = Bit is unknown
bit 7
Unimplemented: Read as ‘0’
bit 6-4
MINTEN<2:0>: Binary-Coded Decimal Value of Minute’s Tens Digit
Contains a value from 0 to 5
bit 3-0
MINONE<3:0>: Binary-Coded Decimal Value of Minute’s Ones Digit
Contains a value from 0 to 9
REGISTER 5-17:
PWRxxHOUR: POWER-DOWN/POWER-UP TIME-STAMP HOURS VALUE
REGISTER (ADDRESSES 0x19/0x1D)
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
—
12/24
AM/PM
HRTEN1
HRTEN0
HRONE3
HRONE2
HRONE1
HRONE0
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 clear
x = Bit is unknown
If 12/24 = 1 (12-hour format):
bit 7
Unimplemented: Read as ‘0’
bit 6
12/24: 12 or 24 Hour Time Format bit
1 = 12-hour format
0 = 24-hour format
bit 5
AM/PM: AM/PM Indicator bit
1 = PM
0 = AM
bit 4
HRTEN0: Binary-Coded Decimal Value of Hour’s Tens Digit
Contains a value from 0 to 1
bit 3-0
HRONE<3:0>: Binary-Coded Decimal Value of Hour’s Ones Digit
Contains a value from 0 to 9
If 12/24 = 0 (24-hour format):
bit 7
Unimplemented: Read as ‘0’
bit 6
12/24: 12 or 24 Hour Time Format bit
1 = 12-hour format
0 = 24-hour format
bit 5-4
HRTEN<1:0>: Binary-Coded Decimal Value of Hour’s Tens Digit
Contains a value from 0 to 2.
bit 3-0
HRONE<3:0>: Binary-Coded Decimal Value of Hour’s Ones Digit
Contains a value from 0 to 9



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