$C030 -- Tape Toggle Question

["Bryan Parkoff" <nospam@nospam.com>]

    6502 CPU has four instructions which they have four strobes.  STA $2000 
is single strobe.  STA $2000,X is double strobe.  ASL $2000 is triple 
strobe.  ASL $2000,X is quad strobe.
    It looks like one strobe turns on tape cassette or speaker.  It needs 
second strobe to turn off tape cassette or speaker.  It means that you want 
to toggle the on/off switch.  You use STA $2000,X which it has double 
strobes.  It can turn on and off tape cassette or speaker during two cycles. 
Am I correct?
    It is what I understand that it only takes one cycle to turn on tape 
cassette before it has to take second cycle to turn off tape cassette.  Is 
on/off switch useful during two cycles for communication through serial 
port, Disk II Logic, and other I/O devices?
    Is ASL $2000,X useful for tape cassette if you want to turn on and off 
twice as quad strobe?

Bryan Parkoff