Mention in DETAIL the differences between the ARM LPC2119 and the 805.pdf
- 1. Mention in DETAIL the differences between the ARM LPC2119 and the 8051. (Mention the architecture, instructions, registers etc.). Solution 8051 has Harvard architecture (the memory for RAM is separate from the memory for program). On the other hand, ARM LPC2119 has von Neumann architecture (program and RAM share the same memory space). ARM LPC2119 has a 16/32-bit architecture. On the other hand, 8051 has an 8-bit architecture. 8051 needs multiple clock cycles per instruction (12 cycles per instruction). On the other hand, most of ARM instructions are executed in one clock cycle. ARM's Instruction Set Architecture is RISC (Reduced Instruction Set Architecture). On the other hand, 8051 has CISC (Complex Instruction Set Architecture). The communication protocols used in ARM are UART, USART, LIN, I2C, I2S, SAI, Ethernet, SPI, CAN, USB, DSP, IrDA. On the other hand, 8051 uses only UART, USART, I2C, SPI. ARM has instructions based on conditional processing. On the other hand, 8051 does not have such instructions. In ARM, a data-processing instruction cannot be used to access memory. Data has to be stored in a register before it can be processed. In 8051, data processing instructions can access memory directly. ARM has 16 32-bit general purpose registers, three of which are SFRs (Special Function Registers) - Stack Pointer, Program Counter, Link Register. On the other hand, 8051 has 8 8-bit general purpose registers. There are separate SFRs in 8051 - A register, B register, Stack Pointer, Data Pointer, etc. In ARM, EEPROM, SDRAM, and Flash memories are supported. On the other hand, 8051 supports ROM, SRAM, and Flash.