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PCF2123TS датащи(PDF) 11 Page - NXP Semiconductors

номер детали PCF2123TS
подробное описание детали  SPI Real time clock/calendar Time keeping application
PDF  63 Pages
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производитель  NXP [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCF2123TS датащи(HTML) 11 Page - NXP Semiconductors

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PCF2123
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5 — 27 April 2011
11 of 63
NXP Semiconductors
PCF2123
SPI Real time clock/calendar
8.3.2 Register Control_2
[1]
Default value.
Table 7.
Control_2 - control and status register 2 (address 01h) bits description
Bit
Symbol
Value
Description
Reference
7MI
0[1]
minute interrupt is disabled
Section 8.6.3
1
minute interrupt is enabled
6SI
0[1]
second interrupt is disabled
1
second interrupt is enabled
5MSF
0[1]
no minute or second interrupt generated
1
flag set when minute or second interrupt
generated;
flag must be cleared to clear interrupt
when TI_IP = 0
4TI_TP
0[1]
interrupt pin follows timer flags
Section 8.7.2
1
interrupt pin generates a pulse
3AF
0[1]
no alarm interrupt generated
Section 8.5.5
1
flag set when alarm triggered;
flag must be cleared to clear interrupt
2TF
0[1]
no countdown timer interrupt generated
Section 8.6.4
1
flag set when countdown timer interrupt
generated;
flag must be cleared to clear interrupt
when TI_IP = 0
1AIE
0[1]
no interrupt generated from the alarm flag
Section 8.7.3
1
interrupt generated when alarm flag set
0TIE
0[1]
no interrupt generated from the countdown
timer
Section 8.7.2
1
interrupt generated by the countdown timer



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