--- In "Jesse Off" <> wrote:
> The CPLD/FPGA on the TS7400 currently has some space leftover that
> we're thinking of creating multiple loads for similar to the TS-
7260
> (XDIO, SD, 5UARTS, etc..) If anybody has some suggestions for
extra
> simple DIO-like functionality such as quadrature channels, PWM,
> timers, frequency counters, etc, that would be useful give me a
call
> 480-837-5200 or send an email!
Jesse,
One thing that might be nice is a simple interface for driving a
multiplexed 8-bit I/O bus. I use a Wilke Technology TinyTiger in one
of old products, and it implemented this type of bus which allowed I/
O expansion as well as driving a T6963C? Graphic LCD. Using this
structure it was easy to add digital inputs/outputs using simple tri-
state buffers and latches. This could also form the basis of a simple
bus to add another CPLD or FPGA on an expansions card...
Also, some form of enhanced SPI with multiple chip selects would be
nice.
Thoughts,
PJE
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