- 您现在的位置：买卖IC网 > PDF目录268241 > PCF8563TD-T (NXP SEMICONDUCTORS) Real-time clock/calendar PDF资料下载
参数资料
| 型号： | PCF8563TD-T |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | XO, clock |
| 英文描述： | Real-time clock/calendar |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封装： | 3.90 MM, PLASTIC, SO-8 |
| 文件页数： | 30/32页 |
| 文件大小： | 711K |
| 代理商： | PCF8563TD-T |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页当前第30页第31页第32页
Philips Semiconductors
PCF8563
Real-time clock/calendar
Product specication
16 April 1999
7 of 30
9397 750 04855
Philips Electronics N.V. 1999. All rights reserved.
8.6.2
Control/Status 2 register
[1]
TF and INT become active simultaneously.
[2]
n = loaded countdown timer value. Timer stopped when n = 0.
Table 7:
Description of Control/Status 2 register bits description (address 01H)
Bit
Symbol Description
7 to 5
0
By default set to logic 0.
4
TI/TP
TI/TP = 0: INT is active when TF is active (subject to the status of TIE).
TI/TP = 1: INT pulses active according to Table 8 (subject to the status
of TIE). Note that if AF and AIE are active then INT will be permanently
active.
3
AF
When an alarm occurs, AF is set to logic 1. Similarly, at the end of a
timer countdown, TF is set to logic 1. These bits maintain their value
until overwritten by software. If both timer and alarm interrupts are
required in the application, the source of the interrupt can be
determined by reading these bits. To prevent one ag being
overwritten while clearing another, a logic AND is performed during a
write access. See Table 9 for the value descriptions of bits AF and TF.
2TF
1
AIE
Bits AIE and TIE activate or deactivate the generation of an interrupt
when AF or TF is asserted, respectively. The interrupt is the logical OR
of these two conditions when both AIE and TIE are set.
AIE = 0: alarm interrupt disabled; AIE = 1: alarm interrupt enabled.
TIE = 0: timer interrupt disabled; TIE = 1: timer interrupt enabled.
0
TIE
Table 8:
INT operation (bit TI/TP = 1)
Source clock (Hz)
INT [1] period (s)
n [2] =1
n>1
4 096
1
8192
1
4096
64
1
128
1
64
1
64
1
64
1
60
1
64
1
64
Table 9:
Value descriptions for bits AF and TF
R/W
Bit: AF
Bit: TF
Value Description
Read
0
alarm ag inactive
0
timer ag inactive
1
alarm ag active
1
timer ag active
Write
0
alarm ag is cleared
0
timer ag is cleared
1
alarm ag remains unchanged
1
timer ag remains unchanged
相关PDF资料 |
PDF描述 |
|---|---|
| PIC12C671T-10E | 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter |
| PIC12C671T-10I | 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter |
| PIC12C672 | EPROM Memory Programming Specification |
| PIC12C672-10 | 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter |
| PIC12C672-10E | 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PCF8563T-F4 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Real-time clock/calendar |
| PCF8563TF4.118 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Real-time clock/calendar |
| PCF8563TS | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Real-time clock/calendar |
| PCF8563TS/4 | 制造商:NXP Semiconductors 功能描述:RTC/Calender,1.8-5.5V,PCF8563TS/4 |
| PCF8563TS/4,118 | 功能描述:实时时钟 ULTRA LOW PWR CLOCK CALENDAR RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。