STC micro STC8A8K64D4 Series - Timer 3 (Divided Clock Output)

STC8A8K64D4 Series Manual
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TM3ISR:
CPL P1.0 ;Test port
RETI
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
MOV T3L,#66H ;65536-11.0592M/12/1000
MOV T3H,#0FCH
MOV T4T3M,#0CH ;Set external counting mode and start timer
MOV IE2,#ET3 ;Enable timer interrupt
SETB EA
JMP $
END
13.5.25 Timer 3 (Divided clock output)
C language code
//Operating frequency for test is 11.0592MHz
#include "reg51.h"
#include "intrins.h"
sfr T4T3M = 0xd1;
sfr T4L = 0xd3;
sfr T4H = 0xd2;
sfr T3L = 0xd5;
sfr T3H = 0xd4;
sfr T2L = 0xd7;
sfr T2H = 0xd6;
sfr P0M1 = 0x93;
sfr P0M0 = 0x94;
sfr P1M1 = 0x91;
sfr P1M0 = 0x92;
sfr P2M1 = 0x95;
sfr P2M0 = 0x96;
sfr P3M1 = 0xb1;
sfr P3M0 = 0xb2;
sfr P4M1 = 0xb3;
sfr P4M0 = 0xb4;