STC micro STC8A8K64D4 Series Reference Manual page 263

STC8A8K64D4 Series Manual
sfr P0M0
sfr P1M1
sfr P1M0
sfr P2M1
sfr P2M0
sfr P3M1
sfr P3M0
sfr P4M1
sfr P4M0
sfr P5M1
sfr P5M0
sbit P12
sbit P13
void UART3_Isr() interrupt 17
{
if (S3CON & 0x02)
{
S3CON &= ~0x02;
P12 = !P12;
}
if (S3CON & 0x01)
{
S3CON &= ~0x01;
P13 = !P13;
}
}
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;
S3CON = 0x10;
T2L = 0xe8;
T2H = 0xff;
AUXR = 0x14;
IE2 = ES3;
EA = 1;
S3BUF = 0x5a;
while (1);
}
Assembly code
;Operating frequency for test is 11.0592MHz
T2L DATA
T2H DATA
= 0x94;
= 0x91;
= 0x92;
= 0x95;
= 0x96;
= 0xb1;
= 0xb2;
= 0xb3;
= 0xb4;
= 0xc9;
= 0xca;
= P1^2;
= P1^3;
0D7H
0D6H
//Clear interrupt flag
//Test port
//Clear interrupt flag
//Test port
//65536-11059200/115200/4=0FFE8H
//Start timer
//Enable UART3 interrupt
//Send test data
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