Altera Transceiver PHY IP Core User Manual
Page 312
Table 12-11: General and Datapath Parameters
The following table describes the general and datapath options for the Standard PCS.
Parameter
Range
Description
Standard PCS protocol mode
basic
cpri
gige
srio_2p1
Specifies the protocol that you intend to
implement with the Native PHY. The
protocol mode selected guides the
MegaWizard in identifying legal settings for
the Standard PCS datapath. Use the following
guidelines to select a protocol mode:
• basic -select this mode for when none of
the other options are appropriate. You
should also select this mode to enable
diagnostics, such as loopback.
• cpri select this mode if you intend to
implement CPRI or another protocol that
requires deterministic latency. Altera
recommends that you select the
appropriate CPRI preset for the CPRI
protocol.
• gige -select this mode if you intend to
implement Gigabit Ethernet. Altera
recommends that you select the
appropriate GIGE preset for the Ethernet
bandwidth you intend to implement.
• srio_2p1 -select this mode if you intend to
implement the Serial RapidIO protocol.
Standard PCS/PMA interface width
8, 10, 16,
20, 32, 40
64, 80
Specifies the width of the datapath that
connects the FPGA fabric to the PMA. The
transceiver interface width depends upon
whether you enable 8B/10B. To simplify
connectivity between the FPGA fabric and
PMA, the bus bits used are not contiguous for
16- and 32-bit buses. 16-, 32-, and 64-bit
for the bits used.
FPGA fabric/Standard TX PCS
interface width
8, 10, 16, 20 Shows the FPGA fabric to TX PCS interface
width which is calculated from the Standard
PCS/PMA interface width.
FPGA fabric/Standard RX PCS
interface width
8, 10, 16, 20 Shows the FPGA fabric to RX PCS interface
width which is calculated from the Standard
PCS/PMA interface width.
Enable Standard PCS low latency mode
On/ Off
When you turn this option On, all PCS
functions are disabled. This option creates a
the lowest latency Native PHY that allows
dynamic reconfigure between multiple PCS
datapaths.
12-14
Standard PCS Parameters for the Native PHY
UG-01080
2015.01.19
Altera Corporation
Stratix V Transceiver Native PHY IP Core