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7. Real-Time Clock
74
Register D
Register: D
Address: 0Dh
Access: Read
VRT
0
7
6
5
4
3
2
1
0
0
0
0
0
0
0
Valid RAM
0 Invalid
1 Valid
Register D
ADDITIONAL INFORMATION
Refer to the National Semiconductor PC87306 datasheet for more information on the
real-time clock operating modes. The product folder for the PC87306, including the data
sheet, is available on the web site
http://www.national.com/pf/PC/PC87306.html
.