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MCP7940N-E/MS датащи(PDF) 22 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) 22 Page - Microchip Technology

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MCP7940N
DS20005010J-page 22
 2011-2022 Microchip Technology Inc. and its subsidiares
REGISTER 5-10:
ALMxHOUR: ALARM0/1 HOURS VALUE REGISTER (ADDRESSES 0x0C/0x13)
U-0
R-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)
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)
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
Note 1: This bit is read-only and reflects the value of the 12/24 bit in the RTCHOUR register.



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