The is a binary compatible follow up on the As in thethe contents of the memory address pointed to by HL can be accessed as pseudo register Interfacung. These instructions use bit interracing and include indirect loading and storing of a word, a subtraction, a shift, a rotate, and offset dith.
#Eprom programmer design 8085 generator#
An improvement over the is that the can itself drive a piezoelectric crystal directly connected to it, and a built-in clock generator generates the internal high amplitude two-phase clock woth at half the crystal frequency a 6. An Intel AH processor.Īll interrupts are enabled by the EI instruction and disabled by the DI instruction. The incorporates the functions of the clock generator and the system controller on chip, increasing the level of integration. However, it requires less support circuitry, allowing simpler and less expensive microcomputer systems to be built. One sophisticated instruction is XTHL, which is used for exchanging the register pair HL with the value stored at the address indicated by the stack pointer. Like larger processors, it has CALL and RET instructions for multi-level procedure calls and returns which can be conditionally executed, like jumps and instructions to save and restore any bit register-pair on the machine stack. It has a bubble memory option and various programming modules, including EPROM, and Intel and programming modules which are plugged into the side, replacing stand-alone device programmers.Īlthough the is an 8-bit processor, it has interfacint bit operations. The is a conventional von Neumann design based on the Intel Later and support was added including ICE in-circuit emulators. By using this site, you agree to the Terms of Use and Privacy Policy.Īll data, control, and address signals are available on dual pin headers, and a large prototyping area is provided. The accumulator stores the results of arithmetic and logical operations, and the flags register bits sign, zero, auxiliary carry, parity, and carry flags are set or cleared according to the results of these operations. Witg many engineering schools the processor is used in introductory microprocessor courses. Case study: Interfacing the The is a special chip designed by Intel to work with the to demonstrate the interfacing of the MPU. Having received HOLD request the microprocessor relinquishes the. HOLD: It indicates that another device is requesting the use of the address and data bus.
It can be easily interfaced with microprocessor.