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Intel (i) is an enhanced version of Intel microprocessor. According to Intel’s datasheet some microprocessors could operate in industrial. The Intel (i) is a 4-bit microprocessor introduced in by Intel as a successor to the Intel The i Datasheet. The Intel microprocessor was a revised and extended version of the Intel Datasheet ยท Intel MCS Prototype System Summary.

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Fetch indirect from ROM. No abstract text available Text: Designate ROM bank 0.

The ceramic D variant. In the system design this should be designated as the RAM channel.

4040 Datasheet PDF

The accumulator is cleared. Intel may make changes to. The following symbols and abbreviations will be used throughout the next few sections: If a borrow is generated, the carry bit is set to 0; otherwise, it is set to 1. These are the new instructions which have been added to the The 4 bits of status character 1 from the previously selected RAM register are transferred to the accumulator.

This page was last edited on 1 Octoberat Program control is transferred to the instruction at that address on the same page same ROM where the JIN instruction is located. Thefabricated using pMOST technology, introduced a small set of additional instructions, a larger call stack, a larger register fileand interrupt capabilities. Numerous versions of the Intel MCS-4 line of processors were produced.

Write the contents of the accumulator into the previously selected RAM status character 2. Program counter incrementer and data input buffers are inhibited. The index register bank select flip-flop is reset. The 4 bit contents of index register 6 are logically “AND-ed” with the accumulator.


Privacy policy About WikiChip Disclaimers. Many of the more recent versions of MCS-4 family were also produced with plastic P. The 4 bit content of the index register is unaffected.

Retrieved 22 March This instruction can be used only with the standard memory chip. In February Intel releases the microprocessor to the market. The is part of the Intel MCS chipset. The 8 bit content of the 0 index register pair is sent out as an address in the same page where the FIN instruction is located. Verify with your local Intel sales office that you have the latest data.

This article is still a stub and needs your attention. Select index register bank 0. The interrupt acknowledge line is cleared to V SS.

The 4 bit content of the designated index register RRRR is loaded into the accumulator.

Intel – Wikipedia

This bank is selected with reset. Each instruction will be described as follows: Interview for the Center for the History of Electrical Engineering. The earliest versions, marked C like Cwere ceramic and used a zebra pattern of white and gray on the back of the chips, often called “grey traces”. The data present at the input lines of the previously selected ROM chip is transferred to the accumulator.

The first public mention of was an advertisement in the November 15, edition of Electronic News[7] though unconfirmed reports put the date of first delivery as early as March Imtel ceramic Intel C microprocessor with grey traces. It was the first dataeheet available microprocessor by Intel. The result is placed in the accumulator and the carry flip-flop is unaffected. The 4 bit content of the designated index register is incremented by 1.


The previous contents of the accumulator are lost. CPU Utilization of V. Write the contents of the accumulator datasheft the previously selected RAM status character 1. Retrieved November 15, Up 1 level in stack. The 4 bit content of the designated index register is loaded datasheeet the accumulator.

The next generation of the chips was plain white ceramic also marked Cand then dark itnel ceramic D. Designate ROM bank 1.

The idea was that any mission-critical context should be kept in the first 8, as when an interrupt occurred it would not only push an exception handler address onto the stack but also switch Index Register banks, automatically preserving that state until the handler returned control to the normal program flow – assuming, of course, you hadn’t already deliberately swapped banks in order to make use of the additional internal memory space.

In the lower-right corner of the CPU you can see the “F.

Intel 4040

The plastic P variant. Send contents of index register pair location 0 out as an address. Archived from the original on Two C with one opened.