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参数资料
| 型号： | RX-8581NB |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO22 |
| 封装： | SON-22 |
| 文件页数： | 3/32页 |
| 文件大小： | 399K |
| 代理商： | RX-8581NB |
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RX - 8581 SA / JE / NB
Page - 8
ETM13E-02
4) STOP bit
This bit is used to stop functions related to the RTC's internal counter operations.
Writing a "1" to this bit stops the counter operations.
Writing a "0" to this bit cancels stop status (restarts operations).
For optimum performance, do not use this bit for functions other than the clock and calendar functions.
STOP
Data
Description
0
[Normal operation mode]
This bit is used to cancel stop status for (i.e., restart) the clock and calendar
function. Also, when "1" is written to the STOP bit, it cancels stop status for
the fixed-cycle timer function.
When the RESET bit value is "1" operation will not be restarted. To restart operation, a "0" must
be written to both the STOP bit and the RESET bit.
Write/Read
1
[Operation stop mode]
Stops updating of year, month, date, day, hour, minute, and second values
and partially stops the fixed-cycle timer function.
(Stop 1) Stops updating of year, month, date, day, hour, minute, and
second values
This stops all clock and calendar update operations.
Once this occurs, no more time update interrupt events or
alarm
interrupt events occur.
(Stop 2) Partially stops the fixed-cycle timer function
If the fixed-cycle timer's source clock settings include an update
setting of 64 Hz, 1 Hz, or "Minute", the fixed-cycle timer function does
not operate.
However, this function does operate when the fixed-cycle timer's source
clock setting is 4096 Hz.
When this bit value is "1", internal divider stops from 2048Hz to 1 Hz .
5) RESET bit
Like the STOP function described above, this function stops functions related to counter operations. It also
resets the RTC module's internal counter value when the value is less than one second.
Writing a "1" to this bit stops the counter operation and resets the RTC module's internal counter value when the
value is less than one second.
Writing a "0" to this bit cancels stop status for (restarts) these operations. If a STOP condition or repeated
START condition is received while the 0.95-second bus timeout function is operating, stop status is automatically
canceled (the RESET bit value is changed from "1" to "0").
For optimum performance, do not use this bit for functions other than the clock and calendar functions.
RESET
Data
Description
0
[Normal operation mode]
This bit is used to cancel stop status for (i.e., restart) the clock and calendar
function. Also, when "1" is written to the RESET bit, it cancels stop status for
the fixed-cycle timer function.
Since operation is not restarted when the STOP bit value is "1", to restart operation, a "0" must be
written to both the STOP bit and the RESET bit.
Write/Read
1
[Operation stop mode]
Stops updating of year, month, date, day, hour, minute, and second values
and partially stops the fixed-cycle timer function.
(Stop 1) Stops updating of year, month, date, day, hour, minute, and
second values
This stops all clock and calendar update operations.
Once this occurs, no more time update interrupt events or alarm
interrupt events occur.
(Stop 2) Partially stops the fixed-cycle timer function
If the fixed-cycle timer's source clock settings include an update
setting of 64 Hz, 1 Hz, or "Minute", the fixed-cycle timer function does
not operate.
However, this function does operate when the fixed-cycle timer's source clock setting is
4096 Hz.
(Note) When this bit value is "1", the internal divider keeps the reset state, from 2048Hz to 1 Hz .
相关PDF资料 |
PDF描述 |
|---|---|
| RX-8581NBB | REAL TIME CLOCK, PDSO20 |
| S-3510ACFJA-TB | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| S-3510ADFJ | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| S-3510AEFJ | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| S-3511AECAG | REAL TIME CLOCK, UUC8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RX-8581SA | 制造商:Epson Toyocom Corporation 功能描述:32.768kHz 0.45uA@3V(Typ.) 1.8 to 5.5V 10.1~5.0~3.2mm +85 -40 5}23ppm@+25/3.0V I2C-BusVAC^[tFCX 10.1mm 5mm 3.2mm 制造商:Epson Toyocom 功能描述:RTC module,I2C Bus,High quality,SOP14 |
| RX-8581SA B3 | 制造商:Epson Electronics America Inc 功能描述:Real Time Clock Serial 14-Pin SOP T/R 制造商:Epson 功能描述:Real Time Clock Serial 14-Pin SOP T/R |
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