NAiS FP Series, Hardware Manual

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FP0 Hardware C.1 Special Data Registers
C-7 Matsushita Electric Works (Europe) AG
Addresses
Description
T32CP Other Types
DT90058
(see note )
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Clock/calendar time setting and 30s correction
The clock/calendar is adjusted as follows.
When setting the clock/calendar by program that uses F0 (MV)
instructions
By setting the the highest bit of DT90058 to 1, the time becomes that
written to DT90054 to DT90057 by F0 (MV) instruction. After the time is
set, DT90058 is cleared to 0. (Cannot be performed with any instruction
other than F0 (MV) instruction.)
Example: FPWIN GR
Set the time to 12:00:00 on the 5th day when the X0 turns ON.
Note
If you changed the values of DT90054 to DT90057 with the data
monitor functions of NPST-GR software, the time will be set
when the new values are written. Therefore, it is unnecessary to
write to DT90058.
When the correcting times less than 30 seconds
By setting the lowest bit of DT90058 to 1, the value will be moved up or
down and become exactly 0 seconds. After the correction is completed,
DT90058 is cleared to 0.
Example: FPWIN GR
Correct to 0 seconds with X0 turns ON
At the time of correction, if between 0 and 29 seconds, it will be moved
down, and if the between 30 and 59 seconds, it will be moved up. In the
example above, if the time was 5 minutes 29 seconds, it will become 5
minutes 0 second; and, if the time was
5 minutes 35 seconds, it will
become 6 minutes 0 second.
( DF )
[ F0 MV, H 0, DT90054 ]
[ F0 MV, H8000, DT90058 ]
[ F0 MV, H 512, DT90055 ]
1
1
( DF )
[ F0 MV, H 1, DT90058 ]
1
1
X0
X0
Correct to 0
second
.
Inputs 0 minutes . . .
and 0 seconds
Inputs 12th hour
. . .
5th day
Sets the time
. . .
Note
An expansion memory unit is necessary.