PCA2125TS NXP [NXP Semiconductors], PCA2125TS Datasheet - Page 11

• Manufacturer Part Number: PCA2125TS
• Description: SPI Real-time clock/calendar
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCA2125_1
Product data sheet
Table 19.
Table 20.
Table 21.
Bit
7
6
12 hour mode
5
4 to 0
24 hour mode
5 to 0
Bit
7
6
5 to 0
Bit
7
3 to 6
2 to 0
Symbol
AEN_H
-
AMPM
HOUR_ALARM
HOUR_ALARM
Symbol
AEN_D
-
DAY_ALARM
Symbol
AEN_W
-
WEEKDAY_ALARM 0 to 6
Register Hour_alarm (address 0Ah) bit description
Register Day_alarm (address 0Bh) bit description
Register Weekday_alarm (address 0Ch) bit description
Rev. 01 — 28 July 2008
Value
0
1
0
0
1
01 to 12
00 to 23
Value
0
1
0
01 to 31
Value
0
1
0
Description
hour alarm is enabled
hour alarm is disabled
unused
indicates AM
indicates PM
this register holds the hour alarm value coded in BCD
format when in 12 hour mode
this register holds the hour alarm value coded in BCD
format when in 24 hour mode
Description
day alarm is enabled
day alarm is disabled
unused
this register holds the day alarm value coded in BCD
format
Description
weekday alarm is enabled
weekday alarm is disabled
unused
this register holds the weekday alarm value
SPI Real-time clock/calendar
PCA2125
© NXP B.V. 2008. All rights reserved.
11 of 36