
14–20 Chapter 14: Arria V GZ Transceiver Native PHY IP Core
10G PCS Parameters
Altera Transceiver PHY IP Core November 2012 Altera Corporation
User Guide
Table 14–20 describes the general and datapath options for the 10G PCS.
10G TX FIFO
The TX FIFO is the interface between TX data from the FPGA fabric and the PCS. This
FIFO is an asynchronous 73-bit wide, 32-deep memory buffer It also provides full,
empty, partially full, and empty flags based on programmable thresholds. Table 14–21
describes the 10G TX FIFO parameters.
Table 14–20. General and Datapath Parameters
Parameter Range Description
10G PCS protocol mode
basic
interlaken
sfi5
teng_baser
teng_sdi
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 10G 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.
■ interlaken: Select this mode if you intend to implement
Interlaken.
■ sfi5: Select this mode if you intend to implement the SERDES
Framer Interface Level 5 protocol.
■ teng_baser: select this mode if you intend to implement the
10GBASE-R protocol.
■ teng_sdi: 10G SDI
10G PCS/PMA interface width
8, 10,16, 20,
8032.40,64
Specifies the width of the datapath that connects the FPGA fabric
to the PMA.
FPGA fabric/10G PCS interface
width
32,40,50,64,66
(1)
,
67
(2)
Specifies the FPGA fabric to TX PCS interface width.
Note to Table 14–20:
(1) The 66-bit FPGA fabric/PCS interface width is achieved using 64-bits from the TX and RX parallel data and the lower 2-bits from the control bus.
(2) The 67-bit FPGA fabric/PCS interface width is achieved using the 64-bits from the TX and RX parallel data and the lower 3-bits from the control
bus.
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