Toshiba TLCS-900/L1 Series Manual page 209

3.13.5 Operational Description
(1) Reading Clock data
There is the case which reads wrong data when carry of the inside counter happens
during the operation which Clock data reads. Therefore, please read two times with
the following way for reading correct data.
Start
PAGER<PAGE> = "0",
Select PAGE0
Read the clock data
(1st)
Read the clock data
(2nd)
1st data = 2nd data
Yes
End
Figure 3.13.2 Flowchart of Clock Data Read
91C824-207
TMP91C824
No
2008-02-20