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MEC1322 датащи(PDF) 234 Page - Microchip Technology

номер детали MEC1322
подробное описание детали  Keyboard and Embedded Controller for Notebook PC
PDF  456 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MEC1322 датащи(HTML) 234 Page - Microchip Technology

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MEC1322
DS00001719D-page 234
 2014 - 2015 Microchip Technology Inc.
19.11.1
SECONDS REGISTER
19.11.2
SECONDS ALARM REGISTER
09h
Year Register
0Ah
Register A
0Bh
Register B
0Ch
Register C
0Dh
Register D
0Eh
(reserved)
0Fh
(reserved)
10h
RTC Control Register
14h
Week Alarm Register
18h
Daylight Savings Forward Register
1Ch
Daylight Savings Backward Register
20h
MCHP Reserved
Note:
This extended register set occupies offsets that have historically been used as CMOS RAM. Code ported
to use this block should be examined to ensure that it does not assume that RAM exists in this block.
Offset
00h
Bits
Description
Type
Default
Reset
Event
7:0 SECONDS
Displays the number of seconds past the current minute, in the range
0--59. Presentation may be selected as binary or BCD, depending on
the DM bit in Register B. Values written must also use the format
defined by the current setting of the DM bit.
R/W
00h
RTC_R
ST
Offset
01h
Bits
Description
Type
Default
Reset
Event
7:0 SECONDS_ALARM
Holds a match value, compared against the Seconds Register to trig-
ger the Alarm event. Values written to this register must use the for-
mat defined by the current setting of the DM bit in Register B. A value
of 11xxxxxxb written to this register makes it don’t-care (always
matching).
R/W
00h
RTC_R
ST
TABLE 19-7:
RUNTIME REGISTER SUMMARY (CONTINUED)
Offset
Register Name (Mnemonic)



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