8XC196MC, MD, MH USER’S MANUAL
16-10
Figure 16-3. Modified Quick-pulse Algorithm
Auto programming repeats the pulse twice (for the 87C196MC, MD) or five times (for the
87C196MH), using the pulse width you specify in the external EPROM . Slave mode re pea ts the
pulse until PROG# is deasserted. In slave programming mode, the PALE# signal controls the
pulse width. In all cases, the pulse width must be at least 100 µs for successful programming.
A0190-03
Return
From Auto or Slave
Programming
Required
Writes Done
?
Start PPW Timer
Write Data to
OTPROM
Enter Idle Mode
Wait for PPW Timer Interrupt
Yes
No
Enable Interrupts
Compare Programmed
Locations and Set Flags