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MCP795W21 数据表(PDF) 12 Page - Micro Analog systems

部件名 MCP795W21
功能描述  SPI Real-Time Clock Calendar
PDF  54 Pages
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制造商  MAS [Micro Analog systems]
网页  http://www.mas-oy.com
标志 MAS - Micro Analog systems

MCP795W21 数据表(HTML) 12 Page - Micro Analog systems

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MCP795WXX/MCP795BXX
DS22280A-page 12
Preliminary
 2011 Microchip Technology Inc.
5.0
TIME AND CONFIGURATION REGISTERS
REGISTER 5-1:
HUNDREDTHS OF SECONDS 0X00
REGISTER 5-2:
SECONDS 0X01
REGISTER 5-3:
MINUTES 0X02
RW
RW
Tenth Seconds
Hundredths of Seconds
bit 7
bit 4 bit 3
bit 0
Legend: R = Readable Bit W = Writable Bit U = Unimplemented bit, Read as ‘0’
bit 7-4
Tenth Seconds
bit 3-0
Hundredths of Seconds
Note:
Contains the BCD Tens and Hundredths of seconds
RW
RW
RW
ST (CT)
10 Seconds
Seconds
bit 7
bit 6
bit 4 bit 3
bit 0
Legend: R = Readable Bit W = Writable Bit U = Unimplemented bit, Read as ‘0’
bit 7
ST (CT)
Setting this bit ‘1’ starts the oscillator and clearing this bit ‘0’ stops the on-board oscillator. For the
MCP795BXX devices the ST bit is replaced by the CT bit. Setting this bit starts the timekeeping registers
counting.
bit 6-4
10 Seconds
bit 3-0
Seconds
Note:
Contains the BCD seconds and 10 seconds. The range is 00 to 59.
URW
RW
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’
bit 7
Unimplemented
bit 6-4
10 Minutes
bit 3-0
Minutes
Note:
Contains the BCD minutes and 10 minutes. The range is 00 to 59.



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