The 2040 Printer Interface

Authors

Cameron Hayne

Publication

Publication Details

Volume: 3 Issue: 4

Date

July/August 1985

Pages

8
See all articles from Sinc-Link v3 n4

Discussion of how the 74LS10 triple 3-input NAND in plug portion decode the device to port FB (and many others). Notes that, according to Wes Brzozowski, decoding logic for an I/O port should check that M1 is high to prevent accidental activation during an interrupt.

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