Hi All, For an up coming project I's considering using this chip, but I would like to verify some of the hardware functions before committing to it: I need the following functionality: 1) 8bit latched input, controlled by a line from the peripheral 2) 8bit bufferred output, controlled by a line from the peripheral 3) serial register, loaded by CBM, and shifted by the peripheral, but only by one bit, then reset by the CBM upon next load. The choice I'm facing is whether to use the 6522 or the 8255. The 8255 doesn't have a serial port (will need TTL chip), but has a bi-directional mode on port A which saves on a external 74373/573 buffer that I would need with the 6522. Is either chip more attractive from a C64 interfacing point of view? Regards, Nick PLEASE TAKE NOTE: The contents of this email (including any attachments) may be privileged and confidential. Any unauthorised use of the contents is expressly prohibited. If you have received this email in error, please advise us immediately (you can contact us by telephone on +61 8 9441 2311 by reverse charge) and then permanently delete this email together with any attachments. We appreciate your co-operation. Whilst Orbital endeavours to take reasonable care to ensure that this email and any attachments are free from viruses or other defects, Orbital does not represent or warrant that such is explicitly the case (C) 2000: Orbital Engine Company (Australia) PTY LTD and its affiliates Message was sent through the cbm-hackers mailing list
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