SBUF physically two registers? and shift register

My first question is regarding SBUF register of 8051. How come it is two registers while locations is only one i.e; 99H. we call SBUF physically two registers (write only and read only two separate distinct...
SBUF physically two registers? and shift register

My first question is regarding SBUF register of 8051. How come it is two registers while locations is only one i.e; 99H. we call SBUF physically two registers (write only and read only two separate distinct...
Understanding PC (R15) register [ARM7]

Hi, In startup code the first instruction is: org 0x00 ldr pc,[pc,#24] and at offset address 0x20: org 0x20 dc32 ?cstartup What I don't understand here is, after the first instruction...
Understanding PC (R15) register [ARM7]

Hi, In startup code the first instruction is: org 0x00 ldr pc,[pc,#24] and at offset address 0x20: org 0x20 dc32 ?cstartup What I don't understand here is, after the first instruction...
Need help in serial programming using SBUF register !!!!

Actually I want to transmit 3 bits serially using AT89C51 micro-controller. I have written the code in ".c" file, using c programming trying to transmit the bits serially using SBUF register. ...