features of 8051

Question 1

features of 8051-memory

Answer 1

8 bit cpu
4k bit on chip program mem -ROM
128 bit on chip data mem-RAM

Question 2

features of 8051-ports and serial

Answer 2

32 i/o arranged as four 8 bit ports
(P0-P3)
one fully duplexed serial i/o (UART)

Question 3

features of 8051-timers and interrupts

Answer 3

two 16 bit timers T0 and T1
two external and three internal vectored interrupts

Question 4

features of 8051-registers and others

Answer 4

32 general purpose registers each of 8 bit
special function registers of 128 bytes
16 bit program counter
8 bit processor status word(PSW) and a stack pointer