STC micro STC8A8K64D4 Series - Slave Routine of Single Master Single Slave Mode (Polling Mode)

STC8A8K64D4 Series Manual
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P3M1 DATA 0B1H
P3M0 DATA 0B2H
P4M1 DATA 0B3H
P4M0 DATA 0B4H
P5M1 DATA 0C9H
P5M0 DATA 0CAH
ORG 0000H
LJMP MAIN
ORG 0100H
MAIN:
MOV SP, #5FH
MOV P0M0, #00H
MOV P0M1, #00H
MOV P1M0, #00H
MOV P1M1, #00H
MOV P2M0, #00H
MOV P2M1, #00H
MOV P3M0, #00H
MOV P3M1, #00H
MOV P4M0, #00H
MOV P4M1, #00H
MOV P5M0, #00H
MOV P5M1, #00H
SETB LED
SETB SS
MOV SPCTL,#50H ;Enable SPI master mode
MOV SPSTAT,#0C0H ;Clear interrupt flag
LOOP:
CLR SS ;Pull down the slave SS pin
MOV SPDAT,#5AH ;Send test data
MOV A,SPSTAT ;Query completion flag
JNB ACC.7,$-2
MOV SPSTAT,#0C0H ;Clear interrupt flag
SETB SS
CPL LED
JMP LOOP
END
20.6.4 Slave Routine of Single Master Single Slave Mode (Polling Mode)
C language code
//Operating frequency for test is 11.0592MHz
#include "reg51.h"
#include "intrins.h"
sfr SPSTAT = 0xcd;
sfr SPCTL = 0xce;
sfr SPDAT = 0xcf;