At 02:00 AM 4/14/2004 -0400, you wrote:


>You could also use an analog or bus switch to connect SDO to SDI just
>when this particular chip is being accessed. For example, the 5 ohm
>NC7SZ66 with an inverter or extra port pin, or the NC7SB3157 controlled
>directly by the TMP124 /CS line.

To clarify, you'd have to switch the SDO output of the PIC to high-Z
(make it an input) and back during transmission/reception
to/from this chip in order to avoid using the extra control pin.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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