ACC-72EX User Manual
DPRAM Data Processing
60
The following flowcharts illustrate how the transfer mechanism (send and receive packets) works. In
order to send a packet, first the function checks if the size of the packet to be sent exceeds the mailbox
size. If both the Host Send Mailbox Command flag and the netX Send Mailbox Acknowledge flag are
either set or cleared, the host application is allowed to send the packet. When copying data to the mailbox
is done, the host toggles the Host Send Mailbox Command flag to give control to the netX firmware.