Second UART needed on 877

[jporthosue]

Does anyone know of an I2C UART I can use to implmement a second UART. My throughput is too heavy to use a software UART.
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[kender_a]

I was looking for an I2C UART too. Such thing does not exist. But here are the two other options.

1. MAX3100 - SPI UART
2. PIC16F818 - it can be an I2C slave, and it has an internal UART. So it can act as an I2C UART (and may be do some other useful things).

Good luck,
Nick
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[Neutone]

:=Does anyone know of an I2C UART I can use to implmement a second UART. My throughput is too heavy to use a software UART.

It has been a while since I have done I2C but I think that performing software bit shifting on a pin can be interupted to service a hardware interupt(uart) and still resume the I2C communications without a fault. The bit time while servicing an interupt would be long but that should still work. Also depending on the speed supported by the slave device a software solution could be faster.
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