MICROPROCESSOR AND INTERFACING BY A.K.RAY PDF

Newer Post Older Post Home. Create lists, bibliographies and reviews: Year 1 5 4 1 1 Language English. The book comprises chapters on architectures and pin diagrams of processors, instruction set and assembler directives, the art of assembly language programming, basic peripherals and their interfacing, RISC architecture, design of a microprocessor and peripherals interfacing. Bhurchandi make it easy for students to approach the complexities associated with this topic using this book.

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How DMA operations are performed? It can perform three operations, namely read, write, and verify. Each channel incorporates two bit registers, namely DMA address register and byte count register. Each channel can transfer data up to 64kb and can be programmed independently. It operates in 2 -modes: Master mode and Slave mode. A0 - A7: These are address lines. A0 - A3 are bidirectional lines. These lines carry 4 LSBs of bit memory address generated by the in the master mode. In the slave mode, these lines are all the input lines.

The inputs select one from the registers to be read or programmed. A4 - A7 lines gives tristated outputs in the master mode which carry 4 through 7 of the bit memory address generated by the Intel D0 - D7: These are data lines.

These are bidirectional three state lines. While programming the controller the CPU sends data for the DMA address register, the byte count register and the mode set register through these data lines.

AEN: Address latch enable. CS: It is chip select. It is a bidirectional line. Data is transferred from the memory.

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