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參數(shù)資料
| 型號： | PT7C4337PE |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Real-time Clock Module (I2C Bus) |
| 中文描述： | 實時時鐘模塊（I2C總線） |
| 文件頁數(shù)： | 8/25頁 |
| 文件大?。?/td> | 640K |
| 代理商： | PT7C4337PE |
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Interrupt related bits
INTCN
Interrupt Output pin select bit.
This bit controls the relationship between the two alarms and the interrupt output pins.
INTCN
Data
PT0205(02/07)
Ver: 1
8
Data Sheet
PT7C4337
Real-time Clock Module (I
2
C Bus)
Description
1
A match between the timekeeping registers and the alarm 1 registers activates the INTA pin (if the
alarm 1 is enabled) and a match between the timekeeping registers and the alarm 2 registers activates
the SQW/INTB pin (if the alarm 2 is enabled).
Read /
Write
0
A match between the timekeeping registers and either alarm 1 or alarm 2 registers activates
the INTA pin (if the alarms are enabled). In this configuration, a square wave is output on
the SQW/INTB pin.
Default
Alarm 1 Interrupt Enable.
A1IE
A1IE
Data
Description
0
The A1F bit does not initiate the INTA signal.
Default
Read /
Write
1
Permits the alarm 1 flag (A1F) bit in the status register to assert INTA.
Alarm 1 Flag.
A1F
A1F
Data
Description
Read / Write
0
The time do not match the alarm 1 registers.
Default
Read
1
Indicates that the time matched the alarm 1 registers. If the A1IE bit is also logic 1, the INTA pin goes
low. A1F is cleared when written to logic 0. Attempting to write to logic 1 leaves the value unchanged.
Alarm 2 Interrupt Enable.
A2IE
A2IE
Data
Description
0
The A2F bit does not initiate an interrupt signal.
Default
Read /
Write
1
Permits the alarm 2 flag (A2F) bit in the status register to assert INTA (when INTCN = 0) or to assert
SQW/INTB (when INTCN = 1).
Alarm 2 Flag.
A1F
A2F
Data
Description
Read /
Write
0
The time do not match the alarm 2 registers.
Default
Read
1
Indicates that the time matched the alarm 1 registers. This flag can be used to generate an interrupt on
either INTA or SQW/INTB depending on the status of the INTCN bit. If the INTCN = 0 and A2F = 1
(and A2IE = 1), the INTA pin goes low. If the INTCN = 1 and A2F = 1 (and A2IE = 1), the
SQW/INTB pin goes low. A2F is cleared when written to logic 0. Attempting to write to logic 1 leaves
the value unchanged.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT7C4337UE | 制造商:Pericom Semiconductor Corporation 功能描述: |
| PT7C4337WE | 制造商:Pericom Semiconductor Corporation 功能描述:1.8V - 5.5V, REA TIME CLOCK, 12C BUS, ALARM/CLOCK OUTPUT - Bulk |
| PT7C4337WEX | 功能描述:IC RTC ALARM 8SOIC RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 實時時鐘 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:時鐘/日歷 特點:警報器，閏年，監(jiān)控器，監(jiān)視計時器 存儲容量:- 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:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| PT7C433833UEX | 制造商:Pericom Semiconductor Corporation 功能描述:RESET IC |
| PT7C433833WE | 制造商:Pericom Semiconductor Corporation 功能描述: |
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