Altera RapidIO II MegaCore Function - Manual (Page 128)

5–4 Chapter 5: Signals
Physical Layer Signals
RapidIO II MegaCore Function August 2014 Altera Corporation
User Guide
Multicast Event Signals
Table 5–5 lists the multicast event signals.
Link-Request Reset-Device Signals
Table 5–6 lists the link-request reset-device control symbol request and
confirmation signals.
Transceiver Signals
Table 5–7 lists the transceiver signals. These signals are connected directly to the
transceiver block. In some cases these signals must be shared by multiple transceiver
blocks that are implemented in the same device.
Table 5–5. Multicast Event Signals
Signal Direction Description
send_multicast_event Input
Change the value of this signal to indicate the RapidIO II IP core should transmit a
multicast-event
control symbol.
After you assert the send_multicast_event signal, await asssertion of the
sent_multicast_event
signal before you toggle this signal again. If you toggle
this signal before you see the sent_multicast_event confirmation from the
previous change of value, the number of multicast events that are sent is
undefined.
multicast_event_rx Output Changes value when a multicast-event control symbol is received.
sent_multicast_event Output
Indicates the RapidIO II IP core has queued a multicast-event control symbol
for transmission.
Table 5–6. Link-Request Reset-Device Signals
Signal Direction Description
send_link_request_reset_device Input
Change the value of this signal to indicate the RapidIO II IP core
should transmit five link-request reset-device control
symbols.
Await asssertion of the sent_link_request_reset_device signal
before you toggle this signal again. If you toggle this signal before you
see the sent_link_request_reset_device confirmation from the
previous change of value, the RapidIO II IP core behavior is
undefined.
link_req_reset_device_received Output
Asserted for one sys_clk cycle when four valid link-request
reset-device
control symbols in a row are received.
The assertion of this signal does not automatically reset the IP core.
However, your design can implement logic to reset the IP core in
response to the assertion of this signal. For example, you could
implement a direct connection from this signal to a reset controller for
the IP core and the transceiver, or implement logic to write to a
register that reset software polls.
sent_link_request_reset_device Output
Indicates the RapidIO II IP core has queued a series of five
link-request reset-device
control symbols for transmission.