I2C Interrupt - STC micro STC8A8K64D4 Series Reference Manual

STC8A8K64D4 Series Manual
MOV
MOV
MOV
MOV
MOV
MOV
ORL
ANL
ORL
ORL
SETB
JMP
END

11.5.21 I2C Interrupt

C language code
//Operating frequency for test is 11.0592MHz
#include "reg51.h"
#include "intrins.h"
sfr P_SW2
#define I2CCFG
#define I2CMSCR
#define I2CMSST
#define I2CSLCR
#define I2CSLST
#define I2CSLADR
#define I2CTXD
#define I2CRXD
sfr P0M1
sfr P0M0
sfr P1M1
sfr P1M0
sfr P2M1
sfr P2M0
sfr P3M1
sfr P3M0
sfr P4M1
sfr P4M0
sfr P5M1
sfr P5M0
sbit P10
void I2C_Isr() interrupt 24
{
_push_(P_SW2);
P_SW2 |= 0x80;
if (I2CMSST & 0x40)
{
I2CMSST &= ~0x40;
P10 = !P10;
}
_pop_(P_SW2);
P4M0, #00H
P4M1, #00H
P5M0, #00H
P5M1, #00H
CMPCR2,#00H
CMPCR1,#80H
CMPCR1,#30H
CMPCR1,#NOT 08H
CMPCR1,#04H
CMPCR1,#02H
EA
$
= 0xba;
(*(unsigned char volatile xdata *)0xfe80)
(*(unsigned char volatile xdata *)0xfe81)
(*(unsigned char volatile xdata *)0xfe82)
(*(unsigned char volatile xdata *)0xfe83)
(*(unsigned char volatile xdata *)0xfe84)
(*(unsigned char volatile xdata *)0xfe85)
(*(unsigned char volatile xdata *)0xfe86)
(*(unsigned char volatile xdata *)0xfe87)
= 0x93;
= 0x94;
= 0x91;
= 0x92;
= 0x95;
= 0x96;
= 0xb1;
= 0xb2;
= 0xb3;
= 0xb4;
= 0xc9;
= 0xca;
= P1^0;
Enable comparator module
;
; Enable comparator edge interrupt
is
;P3.6 CMP+ input pin
is input pin
; P3.7 CMP-
; Enable comparator output
//Clear interrupt flag
//Test port
-
- 257 -