Lucent Technologies MN10285K User Manual

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Conditions:
1.

After the load program initiates a reset start, SBD must be low and SBT 

high.

2.

After the program waits t

WAIT1

 = 10 milliseconds, SBD must still be low and 

SBT high.

3.

Within t

WAIT2

 = 100 milliseconds, both SBD and SBT must be high.

If any of these conditions is not met, control returns to the user program.

SBT pin == high

&&

SDB pin == low?

Yes

No

 Wait t

WAIT1

SBT pin == high

&&

SDB pin == low?

Yes

No

Has t

WAIT2

 passed?

No

SBT pin == high

&&

SDB pin == high?

Yes

No

Yes

Reset start

Start serial writer

load program

Execute user

program