sfr P4M1 = 0xB3; // 0000,0000
// 7 6 5 4 3 2 1 0 Reset Value
sfr P4SW = 0xBB; //Port-4 switch - LVD_P4.6 ALE_P4.5 NA_P4.4 - - - - x000,xxxx
sfr P5 = 0xC8; //8 bitPort5 - - - - P5.3 P5.2 P5.1 P5.0 xxxx,1111
sfr P5M0 = 0xCA; // 0000,0000
sfr P5M1 = 0xC9; // 0000,0000
//--------------------------------------------------------------------------------
//新一代 1T 8051系列 单片机 定时器特殊功能寄存器
// 7 6 5 4 3 2 1 0 Reset Value
sfr TCON = 0x88; //T0/T1 Control TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 0000,0000
//-----------------------------------
sbit TF1 = TCON^7;
sbit TR1 = TCON^6;
sbit TF0 = TCON^5;
sbit TR0 = TCON^4;
sbit IE1 = TCON^3;
sbit IT1 = TCON^2;
sbit IE0 = TCON^1;
sbit IT0 = TCON^0;
//-----------------------------------
sfr TMOD = 0x89; //T0/T1 Modes GATE1 C/T1 M1_1 M1_0 GATE0 C/T0 M0_1 M0_0 0000,0000
sfr TL0 = 0x8A; //T0 Low Byte 0000,0000
sfr TH0 = 0x8C; //T0 High Byte 0000,0000
sfr TL1 = 0x8B; //T1 Low Byte 0000,0000
sfr TH1 = 0x8D; //T1 High Byte 0000,0000
//--------------------------------------------------------------------------------
//新一代 1T 8051系列 单片机 串行口特殊功能寄存器
// 7 6 5 4 3 2 1 0 Reset Value
sfr SCON = 0x98; //Serial Control SM0/FE SM1 SM2 REN TB8 RB8 TI RI 0000,0000
//-----------------------------------
sbit SM0 = SCON^7; //SM0/FE
sbit SM1 = SCON^6;
sbit SM2 = SCON^5;
sbit REN = SCON^4;
sbit TB8 = SCON^3;
sbit RB8 = SCON^2;
sbit TI = SCON^1;
sbit RI = SCON^0;
//-----------------------------------
sfr SBUF = 0x99; //Serial Data Buffer xxxx,xxxx
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本文关键字：单片机 STC单片机(，单片机-工控设备 - STC单片机(
