Z85233 Datasheet, PDF (226/317 Pages) Zilog, Inc. – The Zilog SCC Serial Communication Controller

Application Note
SCC in Binary Synchronous Communications
SPECIAL CONDITION INTERRUPT SERVICE ROUTINE
011E
011E
0120
0122
0124
0126
0128
012A
012C
012E
0130
0132
0134
0136
0138
013A
013C
013E
GLOBAL
ENTRY SPCOND
PROCEDURE
9
93F0
PUSH
@Rl5, R0
3A84
INB
RL0, RR0A+2 !READ ERRORS!
FE23
!PROCESS ERRORS!
C830
LDB
RL0, #%30
3A8B6
OUTB
WR0A, RL0 !ERROR RESET!
FE21
C808
LDB
RL0, #%08
3A86
OUTB
WR0A+2, RL0 !WAIT DISABLE, RxINT ON 1ST OR SP COND.!
FE23
C0D1
LDB
RL0, #%D1
3A86
OUTB
WR0A+6, RL0 !HUNT MODE, REC. ENABLE!
FE27
C838
LDB
RL0, #%38
3A86
OUTB
WR0A, RL0 !RESET HIGHEST IUS!
FE21
97F0
POP
R0, @Rl5
7B00
IRET
0140
END SPCOND
o errors
Assembly complete
END BISYNC
UM010901-0601
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