PC87417 Datasheet, PDF (151/257 Pages) National Semiconductor (TI) – LPC ServerI/O for Servers and Workstations

8.0 Real-Time Clock (RTC) (Continued)
8.3.4 Seconds Alarm Register (SECA)
Power Well: V_PP
Location: Index 01h
Type: R/W
Bit
Name
Reset
7
6
5
4
3
2
1
0
Seconds Alarm Data
0
0
0
0
0
0
0
0
Bit
Description
7-0 Seconds Alarm Data. Values may be 00 to 59 in BCD format or 00 to 3B in Binary format.
When bits 7 and 6 are both set to one (‘11’), unconditional match is selected.
8.3.5 Minutes Register (MIN)
Power Well:V_PP
Location: Index 02h
Type: R/W
Bit
Name
Reset
7
6
5
4
3
2
1
0
Minutes Data
0
0
0
0
0
0
0
0
Bit
Description
7-0 Minutes Data. Values may be 00 to 59 in BCD format or 00 to 3B in Binary format.
8.3.6 Minutes Alarm Register (MINA)
Power Well:V_PP
Location: Index 03h
Type: R/W
Bit
Name
Reset
7
6
5
4
3
2
1
0
Minutes Alarm Data
0
0
0
0
0
0
0
0
Bit
Description
7-0 Minutes Alarm Data. Values may be 00 to 59 in BCD format or 00 to 3B in Binary format.
When bits 7 and 6 are both set to one (‘11’), unconditional match is selected.
Revision 1.2
151
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