IPSERIALLITE Altera, IPSERIALLITE Datasheet - Page 64

• Manufacturer Part Number: IPSERIALLITE
• Manufacturer: Altera

Specifications of IPSERIALLITE

• Lead Free Status / RoHS Status: Not Compliant

SerialLite Link Configuration
3–32
SerialLite MegaCore Function User Guide
1
Packet Size Testing on the Priority Data Port
Because packet sizes are limited on the priority data port, the priority
packet buffers are built only big enough to hold the maximum packet
specified. If a packet is delivered that exceeds the maximum size, the
extra data is lost. The SerialLite MegaCore function is capable of testing
incoming packets to ensure that any oversize packets are flagged as an
error on the status interface.
As long as the maximum packet size is an even multiple of the bus width,
individual packets that are smaller than the specified maximum can still
be tested. If an oversize packet is received, it is discarded and bit 5 of the
status interface is asserted.
If packets are not tested for size, then any maximum packet size can be
specified. If an oversize packet is received, no error is flagged, and data
may be lost.
Minimum Maximum Default
Table 3–18. Maximum Priority Data Packet Size Values
2
MegaCore Function Version 1.1.0
Only the maximum priority packet size is specified. Individual
packets can be any size up to and including this maximum size.
256
32
The size, in bytes, of the largest priority
packet that is allowed in the SerialLite
implementation being created. Packets are
not required to be this size, and may be
smaller. Only available if the priority data port
has been enabled.
Description
Altera Corporation
August 2005