Cache Memory in Pentium Processor: Cache Memory in Pentium Processor – Pentium processors operate at very high clock speeds to provide very good performance. But reading and writing memory off-chip is much slower than accessing CPU registers on-chip. Therefore, the access time of the memory in a system has a critical effect on the system’s …
Memory Interfacing in 8085: Memory is an integral part of a microprocessor system, and in this section, we will discuss how to interface a memory device with the microprocessor. The Memory Interfacing in 8085 is used to access memory quite frequently to read instruction codes and data stored in memory. This read/write operations are monitored …
Features of Microprocessor 8257 DMA Controller: The Features of Microprocessor 8257 DMA Controller are follows, 1. It is a programmable; 4-channel, direct memory access controller. Each channel can be programmed individually. Therefore, we can interface 4 input/output devices with 8257. 2. Each channel includes a 16-bit DMA address register and a 14-bit counter. DMA address …
8257 DMA Controller: In microprocessor based systems data transfer can be controlled by either software or hardware. Upto this point we have used program instructions to transfer data from I/O device to memory or from memory to I/O device. To transfer data by 8257 DMA Controller method microprocessor has to do following tasks : To …
Input Output Transfer Techniques: In Input Output Transfer Techniques, the system requires the transfer of data between external circuitry and the microprocessor. In this section, we will discuss different ways of I/O transfer. Program controlled I/O or Polling control . Interrupt program controlled I/O or interrupt driven I/O. Hardware controlled I/O. I/O controlled by Handshake …
Features of 8085 Microprocessor: The Features of 8085 Microprocessor include : 1.It is an 8-bit microprocessor i.e. it can accept, process, or provide 8-bit data simultaneously. 2.It operates on a single +5V power supply connected at Vcc; power supply ground is connected to Vss. 3.It operates on clock cycle with 50% duty cycle. 4.It has …
Bus Interface in Microprocessor: Bus Interface in Microprocessor – A microcomputer consists of a set of components such as CPU, memory, I/O device and these components communicate with each other to perform a specified task. The collection of paths which connect the various devices or modules is called the interconnection structure. The design of the …
8087 Numeric Data Processor: The 8087 Numeric Data Processor (NDP) is called a high-speed math co-processor. This math co-processor is also known as Numeric Processor Extension (NPX) or Numeric Data Processor (NDP) or Floating Unit Point (FUP). The 8087 is available in 40-pin DIP packages in 5 MHz, 8 MHz, and 10 MHz versions and …
Architecture of Pentium 4 Processor: The simplified block diagram of internal architecture of Pentium 4 Processor is shown in Fig. 12.60 and the detailed internal architecture of Pentium 4 is depicted in Fig. 12.61. Generally, the Architecture of Pentium 4 Processor consists of a Bus Interface Unit (BIU), Instruction Fetch and Decoder Unit, Trace Cache …
Pentium Pro, Pentium II and Pentium III Processors: Pentium Pro The Pentium Pro is a sixth-generation x86 microprocessor and it was introduced by Intel in 1995. This processor was developed based on the P6 micro-architecture. The Pentium and Pentium MMX processors have 3.1 and 4.5 million transistors respectively, but the Pentium Pro consists of 5.5 …
Pentium Pro, Pentium II and Pentium III Processors Read More »