PCF2129AT NXP [NXP Semiconductors], PCF2129AT Datasheet - Page 9

• Manufacturer Part Number: PCF2129AT
• Description: Integrated RTC, TCXO and quartz crystal
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCF2129A_1
Product data sheet
8.2.2 Register Control_2
Table 6.
[1]
[2]
Bit
7
6
5
4
3
2
1
0
Default value.
When writing to the register this bit has always to be set logic 0.
Symbol
MSF
WDTF
TSF2
AF
T
TSIE
AIE
T
Control_2 - control and status register 2 (address 01h) bit description
Rev. 01 — 13 January 2010
Value
0
1
0
1
0
1
0
1
0
0
1
0
1
0
[1]
[1]
[1]
[1]
[2]
[1]
[1]
[2]
Description
no minute or second interrupt generated
flag set when minute or second interrupt
generated;
no watchdog timer interrupt or reset
generated
flag set when watchdog timer interrupt or
reset generated;
no timestamp interrupt generated
flag set when TS input is driven to ground;
no alarm interrupt generated
flag set when alarm triggered;
unused
no interrupt generated from timestamp flag
interrupt generated when timestamp flag set
no interrupt generated from the alarm flag
interrupt generated when alarm flag set
unused
flag must be cleared to clear interrupt
flag cannot be cleared by using the
interface (read-only)
flag must be cleared to clear interrupt
flag must be cleared to clear interrupt
Integrated RTC, TCXO and quartz crystal
PCF2129A
© NXP B.V. 2010. All rights reserved.
Reference
Section 8.12
Section 8.12.3
Section 8.11.1
Section 8.9.6
-
Section 8.12.5
Section 8.12.4
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