Contents
- 1 What is MCS 51 architecture?
- 2 What is the amount of code memory in MCS 51 family of processors?
- 3 Which among the below mentioned devices of MCS 96 family?
- 4 What are the different types of unconditional jumps in MCS 51?
- 5 How many bits are unused in PSW?
- 6 Why is 8051 Famous?
- 7 What are the features of the Intel MCS-48?
- 8 How many I / O lines are in the MCS-48 system?
- 9 What makes grokking the MCS-48 system so good?
What is MCS 51 architecture?
8051 microcontroller is designed by Intel in 1981. It is an 8-bit microcontroller. It is built with 40 pins DIP (dual inline package), 4kb of ROM storage and 128 bytes of RAM storage, 2 16-bit timers. It consists of are four parallel 8-bit ports, which are programmable as well as addressable as per the requirement.
What is the amount of code memory in MCS 51 family of processors?
MCS-51 based microcontrollers typically include one or two UARTs, two or three timers, 128 or 256 bytes of internal data RAM (16 bytes of which are bit-addressable), up to 128 bytes of I/O, 512 bytes to 64 KB of internal program memory, and sometimes a quantity of extended data RAM (ERAM) located in the external data …
Which among the below mentioned devices of MCS 96 family?
The Intel MCS-96 is a family of microcontrollers (MCU) commonly used in embedded systems. The family is often referred to as the 8xC196 family, or 80196, the most popular MCU in the family. These MCUs are commonly used in hard disk drives, modems, printers, pattern recognition and motor control.
Which derivative of 8051 has 3 on-chip timers?
8052 is the super set of 8051 as it has all the features of 8051 with an extra timer and an extra RAM of 128 bytes. Therefore, 8052 has a total of 256 bytes of RAM and 3 timers in all.
Which is the only register without internal on-chip RAM address in MCS 51?
ANSWER: (a) Push 13) Which is the only register without internal on-chip RAM address in MCS-51? ANSWER: (b) Program Counter 14) What kind of instructions usually affect the program counter? ANSWER: (a) Call & Jump Page 4 15) What is the default value of stack once after the system undergoes the reset condition?
What are the different types of unconditional jumps in MCS 51?
Unconditional jump instructions In the 8051 there are two unconditional jumps: LJMP (long jump) and SJMP (short jump).
How many bits are unused in PSW?
two unused bits
It is of 8-bit wide but only 6-bit of it is used. The two unused bits are user-defined flags….8051 Flag Bits and PSW Register.
| CY | PSW.7 | Carry Flag |
|---|---|---|
| F0 | PSW.5 | Flag 0 available to user for general purpose. |
| RS1 | PSW.4 | Register Bank selector bit 1 |
Why is 8051 Famous?
The 8051 IP cores are free to use. The actual microcontrollers are incredibly cheap to buy. They are smaller and consume less power than 32 bit ARM cores. These are just some of the reasons why the 8051 is still popular.
Which is the only register without internal on?
The PC is the only register that does not have an internal address. The DPTR register is made up of two 8-bit registers, named DPH and DPL, that Areused to furnish memory addresses for internal and external code access and external data access.
Which register bank is supposed to get selected if the values of register?
Explanation: If RS1=1, RS0=1, then the register bank selected is register bank 3. If RS1=0, RS0=0, then selected bank is register bank 0.
What are the features of the Intel MCS-48?
The Intel MCS®-48 family are totally self-sufficient, 8-bit parallel computers fabricated on single silicon chips using Intel’s advanced N-channel silicon gate HMOS process. The family contains 27 I/O lines, an 8-bit timer/counter and on-board oscillator/clock circuits.
How many I / O lines are in the MCS-48 system?
The family contains 27 I/O lines, an 8-bit timer/counter and on-board oscillator/clock circuits. For systems that require extra capability, the family can be expanded using MCS®-80/MCS®-85 peripherals.
What makes grokking the MCS-48 system so good?
• High Performance HMOS • Reduced Power Consumption • Interval Timer/Event Counter • Compatible with 8080/8085 Peripherals • Two Single Level Interrupts • Easily Expandable Memory and I/O • Single 5-Volt Supply • Up to 1.36 μs Instruction Cycle • Over 96 Instructions; 90% Single Byte All Instructions 1 or 2 Cycles
How is resident memory organized in the MCS-48?
Resident data memory is organized as 64, 128 or 256 by 8-bits wide in the 8048AH, 8049AH and 8058AH. All locations are indirectly addressable through either of two RAM Pointer Registers which reside at address 0 and 1 of the register array.