Figure 6-10. Serial Module Programming Flowchart - Motorola MC68306 User Manual

Figure 6-10. Serial Module Programming Flowchart (1 of 5)
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SERIAL MODULE
SINIT
INITIATE:
CHANNEL A
CHANNEL B
INTERRUPTS
CHK1
POINT TO CHANNEL A
CALL CHCHK
SAVE CHANNEL A
STATUS
CHK2
POINT TO CHANNEL B
CALL CHCHK
SAVE CHANNEL B
STATUS
MC68306 USER'S MANUAL
ENABLA
ANY
Y
ERRORS IN
CHANNEL A
?
N
ENABLE CHANNEL
A'S RECEIVER
ASSERT CHANNEL A
REQUEST TO SEND
ENABLB
ANY
Y
ERRORS IN
CHANNEL B
?
N
ENABLE CHANNEL
B'S TRANSMITTER
SINITR
RETURN
MOTOROLA