pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 364

• Manufacturer Part Number: pc87591l
• Description: Lpc Mobile Embedded Controllers
• Manufacturer: National Semiconductor Corporation

www.national.com
Host-Controlled Modules and Host Interface
RTC Register Map
Seconds Register (SEC)
Location: Index 00
Type: R/W
Bit
Name
Reset
7-0
Bit
Seconds Data. Values may be 00 to 59 in BCD format or 00 to 3B in binary format.
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
Programmable
Programmable
Programmable
16
16
16
16
16
16
16
16
16
16
16
16
16
16
1. Overlaid on RAM bytes in range 0E
16
7
0
Index
1
1
1
SEC
SECA
MIN
MINA
HOR
HORA
DOW
DOM
MON
YER
CRA
CRB
CRC
CRD
DOMA
MONA
CEN
6
0
Mnemonic
5
0
Seconds Register
Seconds Alarm Register
Minutes Register
Minutes Alarm Register
Hours Register
Hours Alarm Register
Day Of Week Register
Date Of Month Register
Month Register
Year Register
RTC Control Register A
RTC Control Register B
RTC Control Register C
RTC Control Register D
Date of Month Alarm Register R/W
Month Alarm Register
Century Register
16
-7F
Description
364
Seconds Data
4
0
16
Name
.
(Continued)
3
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/O
R/O
R/W
R/W
Type
2
0
V
V
V
V
V
V
V
V
V
V
Bit specific
Bit specific
Bit specific
V
V
V
V
PP
PP
PP
PP
PP
PP
PP
PP
PP
PP
PP
PP
PP
PP
Reset
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
PUR
1
0
Revision 1.07
0
0