pca8565a NXP Semiconductors, pca8565a Datasheet - Page 15

• Manufacturer Part Number: pca8565a
• Description: Real-time Clock/calendar
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCA8565A_2
Product data sheet
8.6.1 Register Minute_alarm
8.6.2 Register Hour_alarm
8.6.3 Register Day_alarm
8.6.4 Register Weekday_alarm
8.6 Alarm registers
Table 20.
[1]
Table 21.
[1]
Table 22.
[1]
Table 23.
[1]
Bit
7
6 to 4 MINUTE_ALARM
3 to 0
Bit
7
6
5 to 4 HOUR_ALARM
3 to 0
Bit
7
6
5 to 4 DAY_ALARM
3 to 0
Bit
7
6 to 3 -
2 to 0 WEEKDAY_ALARM 0 to 6
Default value.
Default value.
Default value.
Default value.
Symbol
AE_M
Symbol
AE_H
-
Symbol
AE_D
-
Symbol
AE_W
Minute_alarm - minute alarm register (address 09h) bit description
Hour_alarm - hour alarm register (address 0Ah) bit description
Day_alarm - day alarm register (address 0Bh) bit description
Weekday_alarm - weekday alarm register (address 0Ch) bit description
Rev. 02 — 4 December 2009
Value
0
1
-
Value
0
1
0 to 5
0 to 9
Value
0
1
-
0 to 2
0 to 9
Value
0
1
-
0 to 3
0 to 9
[1]
[1]
[1]
[1]
Place value Description
-
-
ten’s place
unit place
Place value Description
-
-
-
ten’s place
unit place
Place value Description
-
-
-
ten’s place
unit place
Description
weekday alarm is enabled
weekday alarm is disabled
unused
weekday alarm information coded in BCD format
minute alarm is enabled
minute alarm is disabled
minute alarm information coded in BCD
format
hour alarm is enabled
hour alarm is disabled
unused
hour alarm information coded in BCD
format
day alarm is enabled
day alarm is disabled
unused
day alarm information coded in BCD
format
Real-time clock/calendar
PCA8565A
© NXP B.V. 2009. All rights reserved.
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