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Who know a IC which can be read by DSP and output to RS232?

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ic02

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Who know a IC which can be read by DSP and output to RS232?

Please tell me the type of the IC!
 

mr_ghz

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Hi ic02,

what do you want to do? Add a serial port to yout DSP? In this case, you
can use a UART like the 16C550 (National, includeing FIFO). This chip has
a 8bit databus and include 8 registers that you can access from your DSP.
The other side you need a digital to RS-232 pegelconverter like a MAX232.

The connection of the UART to the DSP depends heavily on the DSP you
are using. Mostly you have to insert wait states. Which device do you use?

Greets
 

ic02

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To:mr_ghz

I have already found the IC ST16C1450,but I can't buy it in china!
Can you suggest me the other IC which has the same function of 16C550?
 

mr_ghz

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Hi ic02

I know following types:

16450 or 16C450 from National, ST, ... is a UART without FIFO buffer
16550 or 16C550 from National, ST, ... is a UART with FIFO

from Texas Instruments there are many other types, but I don't know
which you can buy in your contry...
Another possibility is to use a shift register or a CPLD (to build your own
UART).
 

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