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参数资料
| 型号： | RS5C372A-E2 |
| 厂商： | RICOH COMPANY LTD |
| 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, PDSO8 |
| 封装： | 0.65 MM PITCH, SSOP-8 |
| 文件页数： | 41/59页 |
| 文件大小： | 442K |
| 代理商： | RS5C372A-E2 |
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RS5C372A/B
42
4.2 INTR Output Pin (RS5C372B)
The following three output wave forms can be output from the INTR pin.
1) Alarm interrupt
When a registered time for alarm (such as day-of-the-week, hour or minute) coincide with calendar counter (such
as day-of-the-week, hour or minute) interrupt to the CPU are requested with the output pin being on (“L”). Alarm
interrupt consists of Alarm_A and Alarm_B, both have equivalent functions.
2) Periodic interrupt
Outputs an output wave form selected by setting the periodic interrupt frequency select bit. Wave forms include
pulse mode and level mode.
4.2-1 Control of the INTR Output (flag bit, enable bit, interrupt output select bit) (RS5C372B)
Of the two output wave forms listed above, interrupt output conditions may be set by setting the flag bit that moni-
tors output state on the register, the enable bit that enables an output wave form.
Flag bit
Enable bit
Alarm_A
AAFG (D1 at Fh)
AALE (D7 at Eh)
Alarm_B
BAFG (D0 at Fh)
BALE (D6 at Eh)
Periodic interrupt
CTFG (D2 at Fh)
Disabled at CT2=CT1=CT0=0
(D2 to D0 at Eh)
When power ON (XSTP=1) since AALE=BALE=CT2=CT1=CT0=0,
INTR=OFF (“H”).
When more than one output wave forms are output from a single output pin, the output will have OR wave form of
negative logic of both.
Example: When Alarm_A and Alarm_B are output from the INTR pin.
Alarm_A
Alarm_B
INTR
In such a case which output wave form is output from the pin may be confirmed by reading
the flag register.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RS5C372B | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C372B-E1 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C372B-E2 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C373A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-Time Clock |
| RS5C4FC | 制造商:Dialight 功能描述: |
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