Toshiba T-Series T2200sx, User Manual

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4.12 Real Timer Test
Subtest 01 Real time
A new date and time can be inputted during the Real Time Subtest.
To execute the Real Time Subtest, follow these steps:
1. After the REAL TIMER TEST menu appears, select Subtest 01. The follow-
ing message will appear displaying the current date and time.
Current date : xx-xx-xxxx
Current time : xx:xx:xx
Enter new date:
PRESS [ENTER] KEY TO EXIT TEST
2. If the current date is not correct, input the correct date at the prompt and press
Enter
. The following prompt will appear.
Enter new time :
3. If the current time is not correct, input the correct time (in military format) and
press
Enter
. Press
Ctrl + Break
to return to the REAL TIMER TEST
menu.
Subtest 02 Backup memory
This subtest perform the following checks of the backup memory.
❑
One bit of “on” data to addresses 01h through 80h.
❑
One bit of “off” data to addresses FEh through 7Fh.
❑
The data pattern AAh through 55h to 50 bytes of the RTC backup memory
(addressed 0Eh through 3Fh).
Then the subtest reads and compares this data with the original data.
Subtest 03 Real time carry
CAUTION: When this test is executed, the current date and time are erased.
This subtest checks if the real time clock correctly increments the date and time
displayed (month, day, year, hour, minute, and second).