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| 型號： | ISL12022MAIBZ |
| 廠商： | Intersil |
| 文件頁數(shù)： | 16/31頁 |
| 文件大小： | 0K |
| 描述： | IC RTC/CALENDAR TEMP SNSR 20SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Solutions for Industrial Control Applications |
| 標(biāo)準(zhǔn)包裝： | 38 |
| 類型： | 時鐘/日歷 |
| 特點： | 警報器，夏令時，閏年，SRAM |
| 存儲容量： | 128B |
| 時間格式： | HH:MM:SS（12/24 小時） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | I²C，2 線串口 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 電壓 - 電源，電池： | 1.8 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-SOIC |
| 包裝： | 管件 |
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ISL12022MA
23
FN7575.5
September 5, 2012
DST Control Registers (DSTCR)
8 bytes of control registers have been assigned for the Daylight
Savings Time (DST) functions. DST beginning (set Forward) time
is controlled by the registers DstMoFd, DstDwFd, DstDtFd, and
DstHrFd. DST ending time (set Backward or Reverse) is controlled
by DstMoRv, DstDwRv, DstDtRv and DstHrRv.
DST FORWARD REGISTERS (20H TO 23H)
DST forward is controlled by the following DST Registers:
DST Enable
DSTE is the DST Enabling Bit located in Bit 7 of register 20h
(DstMoFdxx). Set DSTE = 1 will enable the DSTE function. Upon
powering up for the first time (including battery), the DSTE bit
defaults to “0”. When DSTE is set to “1” the RTC time must be at
least one hour before the scheduled DST time change for the
correction to take place. When DSTE is set to “0”, the DSTADJ bit
in the Status Register automatically resets to “0”.
DST Month Forward
DstMoFd sets the Month that DST starts. The format is the same
as for the RTC register month, from 1 to 12. The default value for
the DST begin month is 00h.
DST Day/Week Forward
DstDwFd contains both the Day of the Week and the Week of the
Month data for DST Forward control. DST can be controlled either
by actual date or by setting both the Week of the month and the
Day of the Week. DstDwFdE sets the priority of the Day/Week
over the Date. For DstDwFdE = 1, Day/Week is the priority. You
must have the correct Day of Week entered in the RTC registers
for the Day/Week correction to work properly.
Bits 0, 1, 2 contain the Day of the week information which sets
the Day of the Week that DST starts. Note that Day of the week
counts from 0 to 6, like the RTC registers. The default for the
DST Forward Day of the Week is 00h (normally Sunday).
Bits 3, 4, 5 contain the Week of the Month information that sets
the week that DST starts. The range is from 1 to 5, and Week 7
is used to indicate the last week of the month. The default for
the DST Forward Week of the Month is 00h.
DST Date Forward
DstDtfd controls which Date DST begins. The format for the Date
is the same as for the RTC register, from 1 to 31. The default
value for DST forward date is 00h. DstDtFd is only effective if
DstDwFdE = 0.
DST Hour Forward
DstHrFd controls the hour that DST begins. The RTC hour and
DstHrFd registers have the same formats except there is no Military
bit for DST hour. The user sets the DST hour with the same format as
used for the RTC hour (AM/PM or MIL) but without the MIL bit, and
the DST will still advance as if the MIL bit were there. The default
value for DST hour Forward is 00h.
DST REVERSE REGISTERS (24H TO 27H)
DST end (reverse) is controlled by the following DST Registers:
DST Month Reverse
DstMoRv sets the Month that DST ends. The format is the same
as for the RTC register month, from 1 to 12. The default value for
the DST end month is October (10h).
DST Day/Week Reverse
DstDwRv contains both the Day of the Week and the Week of the
Month data for DST Reverse control. DST can be controlled either by
actual date or by setting both the Week of the month and the Day of
the Week. DstDwRvE sets the priority of the Day/Week over the
Date. For DstDwRvE = 1, Day/Week is the priority. You must have
the correct Day of Week entered in the RTC registers for the
Day/Week correction to work properly.
Bits 0, 1, 2 contain the Day of the week information which sets
the Day of the Week that DST ends. Note that Day of the week
counts from 0 to 6, like the RTC registers. The default for the
DST Reverse Day of the Week is 00h (normally Sunday).
Bits 3, 4, 5 contain the Week of the Month information that sets
the week that DST ends. The range is from 1 to 5, and Week 7 is
used to indicate the last week of the month. The default for the
DST Reverse Week of the Month is 00h.
DST Date Reverse
DstDtRv controls which Date DST ends. The format for the Date is
the same as for the RTC register, from 1 to 31. The default value
for DST Date Reverse is 00h. The DstDtRv is only effective if the
DwRvE = 0.
DST Hour Reverse
DstHrRv controls the hour that DST ends. The RTC hour and
DstHrFd registers have the same formats except there is no
Military bit for DST hour. The user sets the DST hour with the
same format as used for the RTC hour (AM/PM or MIL) but
without the MIL bit, and the DST will still advance as if the MIL bit
were there. The default value for DST hour Reverse is 00h.
TEMP Registers (TEMP)
The temperature sensor produces an analog voltage output
which is input to an A/D converter and produces a 10-bit
TABLE 23. DST REVERSE REGISTERS
ADDRESS
NAME
7
65
432
10
24h
Month Reverse
0
MoRv20
MoRv13
MoRv12
MoRv11
MoRv10
25h
Day Reverse
0
DwRvE
WkRv12
WkRv11
WkRv10
DwRv12
DwRv11
DwRv10
26h
Date Reverse
0
DtRv21
DtRv20
DtRv13
DtRv12
DtRv11
DtRv10
27h
Hour Reverse
0
HrRv21
HrRv20
HrRv13
HrRv12
HrRv11
HrRv10
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| ISL12022MAIBZ-T | 功能描述:實時時鐘 REAL TIME CLK ENHANC CD ESD & MOISTURESIS RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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