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Synchronous Serial Port design

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adrianaitaly

Technical User
Aug 2, 2005
1
IT
Hello everybody,

I need to design a Synchronous Serial Port of a PIC processor that works in SPI mode.

You can find the datasheet here:

This SSP have some components and I'm trying to write an RTL (components) model.

I have 1 shift register, 1 buffer register,2 mux and others simple gates.

I just write models for all these components but I don't
know how to represent 2 registers (8 bits) that are used like "status register" and "controller register".

Supposed that I will use 2 8-bit latches, how can I link these 2 components to the others ? I mean that
in the block diagram (figure 15-1) there isn't any "arrows" that link a component to these registers so I don't know what signals use because the scope of these 2 registers is only to controlling behaviour of the serial port.

I hope I'm clear enough (sorry for my poor english).

Thank you very much,

Adriana (Italy)
 
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