STC micro STC8A8K64D4 Series - Page 109

STC8A8K64D4 Series Manual
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#define LVD2V7 0x02 //LVD@2.7V
#define LVD3V0 0x03 //LVD@3.0V
sbit ELVD = IE^6;
#define LVDF 0x20 //PCON.5
sbit P10 = P1^0;
sbit P11 = P1^1;
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;
sfr P5M1 = 0xc9;
sfr P5M0 = 0xca;
void LVD_Isr() interrupt 6
{
PCON &= ~LVDF; //Clear interrupt flag
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;
PCON &= ~LVDF; //Interrupt flag needs to be cleared after power-on
RSTCFG = LVD3V0; //Set the LVD voltage to 3.0V
ELVD = 1; //Enable LVD interrupt
EA = 1;
PCON = 0x02; //MCU enters power-down mode
_nop_(); //Enter interrupt service routine immediately after wake-up from power mode
_nop_();
_nop_();
_nop_();
while (1)
{
P11 = ~P11;
}
}