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8XC196K x , J x , CA USER'S MANUAL
From Address/
Command Decoder
No
PROG#
(P2.2)=0
?
Yes
Read Data
from PBUS
Read Data
from PBUS
To Address/
Command Decoder
16-22
Yes
Lock Bits
Enabled
?
No
Execute Modified
Yes
Quick-Pulse Algorithm
then Return
No
Programming
Verifies
?
Yes
Assert PVER
(P2.0 = 1)
PROG#
Yes
(P2.2) = 0
?
No
Yes
PALE#
(P2.1) = 0
?
No
No
AINC#
(P2.4) = 0
?
Yes
Increment
Address by 2
Figure 16-8. Program Word Routine
Verify
Security Key
Keys
No
Match
Forever
?
Deassert
PVER (P2.0 = 0)
No
PVER
Deassert CPVER
(P2.0) = 1
Assert PVER
?
Yes
Loop
A0194-03
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