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Integrated Circuits (ICs)
Timer IC t- real time clock Phantom clock SOIC 16 W
1
2
3
4
5
6
7
8
9
10
DS1315 Phant
om Tim
e Chip
8
of
21
Zero Bits
Reg
ist
er
s 1,
2,
3,
4, 5, and 6 conta
in
1 o
r
m
o
re bi
ts t
hat
wil
l always read
l
o
g
i
c 0.
Wh
en wr
i
t
in
g t
hese
l
o
cat
i
o
ns, either
a l
o
g
i
c 1 o
r 0 i
s acc
ept
able.
Figu
r
e
5
. Time Chip Re
g
ister
Definition
1
...
...
6
7
8
9
10
...
...
21