Good afternoon,
I need to replace the 80186 compatible CPU on a design from us by a more modern CPU module that has no data bus but an SPI interface.
I found some SPI-IO expander chips, I could probably use a simple CPLD, but a ready-to-use bridge chip that converts to a 8-bit multiplexed data/address bus would be very nice.
Does anyone know of such a chip?
Thanks, Thomas
What *exactly* do you want to interface to? Why doesn't the I/O expander work for you?
I want to achive higher data rates than I can get with byte-banging (?) the IO-port.
Several devices are connected to the bus, among them an ADC, a DAC, and a couple of FPGAs.
"Thomas Heller" schreef in bericht news: snipped-for-privacy@mid.individual.net...
Can't imagine a CPU without a databus. So I think you'll have to be more specific about your needs.
petrus bitbyter
do you mean 16 bit MCU ?
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townt.com schrieb:
Yes, but an 8-bit data bus would be sufficient.
Microchip support 8, 16, 32 but MCU
I cannot sure, are you looking for 80x86 with data bus?
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