STC micro STC8A8K64D4 Series - Page 436

STC8A8K64D4 Series Manual
- 420 -
Assembly code
;Operating frequency for test is 11.0592MHz
T4T3M DATA 0D1H
T4L DATA 0D3H
T4H DATA 0D2H
T3L DATA 0D5H
T3H DATA 0D4H
T2L DATA 0D7H
T2H DATA 0D6H
S4CON DATA 84H
S4BUF DATA 85H
IE2 DATA 0AFH
BUSY BIT 20H.0
WPTR DATA 21H
RPTR DATA 22H
BUFFER DATA 23H ;16 bytes
P0M1 DATA 093H
P0M0 DATA 094H
P1M1 DATA 091H
P1M0 DATA 092H
P2M1 DATA 095H
P2M0 DATA 096H
P3M1 DATA 0B1H
P3M0 DATA 0B2H
P4M1 DATA 0B3H
P4M0 DATA 0B4H
P5M1 DATA 0C9H
P5M0 DATA 0CAH
ORG 0000H
LJMP MAIN
ORG 0093H
LJMP UART4_ISR
ORG 0100H
UART4_ISR:
PUSH ACC
PUSH PSW
MOV PSW,#08H
MOV A,S4CON
JNB ACC.1,CHKRI
ANL S4CON,#NOT 02H
CLR BUSY
CHKRI:
JNB ACC.0,UART4ISR_EXIT
ANL S4CON,#NOT 01H
MOV A,WPTR
ANL A,#0FH
ADD A,#BUFFER
MOV R0,A
MOV @R0,S4BUF