Apple 13-0010--001 Computer Drive User Manual


 
ELITE SERIES USER MANUAL APPEN. A - DISK I/O
The following figure shows how writing data can
be illustrated in the same way. The clock bits
that were separated from the data must be inter-
leaved with the data as it is written. Notice
that, while in write mode, 0’s (zeros) are being
brought into the data latch to replace data
being written.
The Software must ensure the latch is loaded and
Instructed to write in 32 cycle intervals. If
not, zero bits will continue to be written every
four cycles which is how “self-sync” bytes (ex-
plained later) are created.
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