ACC-72EX User Manual
DPRAM Data Processing
65
Step-by-Step Procedure
Step 1
The protocol stack sends data from the internal OUT buffer to the network and receives data
from the network in the internal IN buffer.
Step 2
The application has control over the dual-port memory and exchanges data with the input
and output data images in the dual-port memory. The application then toggles the
handshake bits, giving control over the dual-port memory to the protocol stack
Step 3
The protocol stack copies the content of the output data image into the internal OUT buffer,
and from the IN buffer to the input data image.
Step 4
The protocol stack toggles the handshake bits, giving control back to the application. Now,
the protocol stack uses the new output data image from the OUT buffer to send it to the
network, and receives data into the internal IN buffer, and then the cycle repeats.