Commodore Amiga A500 Technical Reference Manual page 230

0-low level
l
-high level
REST-RESET
ITRPT/STNPINTERRUPT/STANDARD
Note 1
:
You have the option to write data into the bit*. However,
this data is treated as
0
internally. In addition, the bit* is al-
ways read as 0.
Note 2: You can write
1
into the IRQ
FLAG
bit and
0
or
1
into the
BUSY bit. They are not executed, but can be read.
Note 3: It is possible to read and write all bits other than bit* and
BUSY bit. However, only 0 can be written into IRQ
FLAG.
More information on the clocWcalendar may be found in the OK1
MSM6242RS Direct Bus Connected-Type Real Time Clock app.
notes.