PCA8565TS Philips Semiconductors, PCA8565TS Datasheet - Page 5

• Manufacturer Part Number: PCA8565TS
• Description: Real time clock/calender
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 4:
Bit positions labelled as x are not implemented, those labelled with 0 should always be written with logic 0.
Table 5:
Bit positions labelled as x are not implemented.
9397 750 10695
Product data
Address
00H
01H
0DH
0EH
0FH
Address
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
Fig 4. Voltage-low detection.
Binary formatted registers overview
BCD formatted registers overview
Register name
control/status 1
control/status 2
CLKOUT control
timer control
timer
Register name
seconds
minutes
hours
days
weekdays
months/century
years
minute alarm
hour alarm
day alarm
weekday alarm
8.6 Register organization
handbook, halfpage
Bit 7
TEST1
0
FE
TE
BCD format tens nibble
Bit 7
2
VL
x
x
x
x
C
AE
AE
AE
AE
3
V DD
V low
Bit 6
0
0
x
x
Bit 6
2
x
x
x
x
x
x
x
2
Rev. 01 — 31 March 2003
period of battery
operation
Bit 5
STOP
0
x
x
Bit 5
2
x
x
x
1
<years 00 to 99 coded in BCD>
<minute alarm 00 to 59 coded in BCD>
VL set
<timer countdown value>
<seconds 00 to 59 coded in BCD>
<minutes 00 to 59 coded in BCD>
Bit 4
0
TI/TP
x
x
Bit 4
2
x
x
0
normal power
operation
<hour alarm 00 to 23 coded in BCD>
<day alarm 01 to 31 coded in BCD>
<hours 00 to 23 coded in BCD>
MGR887
<days 01 to 31 coded in BCD>
t
<months 01 to 12 coded in BCD>
Bit 3
TESTC
AF
x
x
BCD format units nibble
Bit 3
2
x
x
3
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Bit 2
0
TF
x
x
Bit 2
2
2
Real time clock/calender
<weekday alarm 0 to 6>
<weekdays 0 to 6>
PCA8565
Bit 1
0
AIE
FD1
TD1
Bit 1
2
1
Bit 0
0
TIE
FD0
TD0
Bit 0
2
0
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