STC micro STC8A8K64D4 Series - I2 C Switch

STC8A8K64D4 Series Manual
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C language code
#include "reg51.h"
sfr P_SW1 = 0xa2;
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 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;
P_SW1 = 0x00; //ECI/P1.2, CCP0/P1.7, CCP1/P1.6, CCP2/P1.5,CCP3/P1.4
// P_SW1 = 0x10; //ECI_2/P2.2, CCP0_2/P2.3, CCP1_2/P2.4, CCP2_2/P2.5,CCP3_2/P2.6
// P_SW1 = 0x20; //ECI_3/P7.4, CCP0_3/P7.0, CCP1_3/P7.1, CCP2_3/P7.2,CCP3_3/P7.3
// P_SW1 = 0x30; //ECI_4/P3.5, CCP0_4/P3.3, CCP1_4/P3.2, CCP2_4/P3.1,CCP3_4/P3.0
while (1);
}
3.2.8 I2C switch
C language code
// Operating frequency for test is 11.0592MHz
#include "reg51.h"
sfr P_SW2 = 0xba;
sfr P0M1 = 0x93;
sfr P0M0 = 0x94;
sfr P1M1 = 0x91;
sfr P1M0 = 0x92;
sfr P2M1 = 0x95;