Universal Computer Interfaces - download pdf or read online

By R.F.B.M. Dheere

ISBN-10: 0080366104

ISBN-13: 9780080366104

Offers a survey of the most recent advancements within the box of the common desktop interface, because of a examine of the realm patent literature. Illustrating the cutting-edge at the present time, the e-book levels from easy interface constitution, via parameters and customary features, to crucial business bus realizations. fresh technical improvements also are incorporated, with certain emphasis dedicated to the common interface adapter circuit. Comprehensively listed.

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Stretching out the clock cycle time. US 4509120 [BELL TELEPHONE LABORATORIES] hä£Y-« , A 1— i—h I , - « E ■" V& 10? |Cll A cu fl (I Mb |ιω|ΐοι|ΰχΓ mm U . PAHAtfltH K II ' IA1CH tin | J - A03 0 A00 7 «15 b Q| -IX AOONtSS MATCH 10 H t M H t t Ml OtWCES INTERFACE PARAMETERS TA CYCLE I ; TB TB TO -J— CYCLE 2 TA 39 - ACCESS OF PERIPHERAL DEVICE WHERE LO« 1000 The device is arranged with a register (11) for holding a parameter corresponding to a desired access cycle of the microcomputer (10). 17) to match the parameter latched in parameter latch (11).

US 4164787 [BELL TELEPHONE LABORATORIES] ,0 PROCESSOR Ί NO. 1 TIMING 2 6 - i J 16- -Jfe — 14 H -READ/WRITE CONTROL IDATA IBUS -ADDRESS BUS V MUX CONTROL 2 8 ^ 1 READ/ WRITE CONTROL λ DATA BUS 2 2 ^ 2Ι MULTIPLEXER las Y 1 16- -115 — ADDRESS BUS 2 0 , r COMMON MEMORY \ r24 TIMING V ,8 12 — ADOR ESS BUS - R E A D / WRITE CONTROL 14—] PROCESSOR Ί TIMING 27-i NO 2 "V A communication arrangement between two or more independently microprocessor units (MPU's) (10, 11). operable 60 UNIVERSAL COMPUTER INTERFACES Large amounts of data or data in block format are capable of being passed between MPU's via the present intercommunication channel with little handshaking between MPU's.

U OUTPUT i > l BUFFER REGISTER! 20 CONVERTERr ■ t ) ANALOG INPUT r " SAMPLE PULSE IN 0/A |CONVERTER| 7 ANALOG OUTPUT 2\ 30 As soon as the control unit (3) is ready for the I/O operations and the processing unit (1) executes an operation without the main memory (2), the processing unit (1) notifies the unit (3) over the vacant time signal line (25). The address selection signal line (30) inhibits the address information given from the central processing unit (1), and the I/O address signal line (29) is connected to the address bus (12).

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Universal Computer Interfaces by R.F.B.M. Dheere


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