Comparison of some abbreviations of single chip microcomputer

Helps understand memory

PC = progammer counter //Program counter

ACC = accumulate //Accumulator

PSW = progammer status word //Program status word

SP = stack point //stack pointer

DPTR = data point register //Data pointer register

IP = interrupt priority //interrupt priority

IE = interrupt enable // interrupt enable

TMOD = timer mode //Timer mode (timer/counter control register)

ALE = alter (change, possibly)

PSEN = progammer saving enable //Program memory enable (meaning to select external program memory)

EA = enable all (enable all interrupts) should be enable all interrupt

PROG = progamme (program)

SFR = special function register //Special function register

TCON = timer control //Timer control

PCON = power control //Power control

MSB = most significant bit//Most significant bit

LSB = last significant bit//least significant bit

CY = carry //Carry (flag)

AC = assistant carry //Assisted carry

OV = overflow // overflow

ORG = originally //Original source

DB = define byte // byte definition

EQU = equal // equal

DW = define word //word definition

E = enable //Enable

OE = output enable //output enable

RD = read // read

WR = write //write

Interrupt section:

INT0 = interrupt 0 //interrupt 0

INT1 = interrupt 1 //interrupt 1

T0 = ​​timer 0 //Timer 0

T1 = timer 1 //Timer 1

TF1 = timer1 flag //Timer 1 flag (actually timer 1 interrupt flag)

IE1 = interrupt exterior 【ik'sti?ri?】external //(external interrupt request, may be)

IT1 = interrupt touch //(external interrupt trigger mode, may be)

ES = enable serial //Serial enable

ET = enable timer //Timer enable

EX = enable exterior //External enable (interrupt)

PX = priority exterior //External interrupt priority

PT = priority timer //Timer priority

PS = priority serial //Serial port priority