STC micro STC8A8K64D4 Series - Page 245

STC8A8K64D4 Series Manual
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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;
sfr P5M1 = 0xc9;
sfr P5M0 = 0xca;
sfr INTCLKO = 0x8f;
#define EX2 0x10
#define EX3 0x20
#define EX4 0x40
sbit P10 = P1^0;
void INT3_Isr() interrupt 11
{
P10 = !P10; //Test port
}
void main()
{
P0M0 = 0x00;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
P4M0 = 0x00;
P4M1 = 0x00;
P5M0 = 0x00;
P5M1 = 0x00;
INTCLKO = EX3; //Enable INT3 interrupt
EA = 1;
while (1);
}
Assembly code
;Operating frequency for test is 11.0592MHz
INTCLKO DATA 8FH
EX2 EQU 10H
EX3 EQU 20H
EX4 EQU 40H
P0M1 DATA 093H
P0M0 DATA 094H
P1M1 DATA 091H
P1M0 DATA 092H
P2M1 DATA 095H
P2M0 DATA 096H
P3M1 DATA 0B1H
P3M0 DATA 0B2H