Achronix Speedster22i SerDes - Manual (Page 65)

Entry field Purpose Available Options Choice made
Elastic FIFO *3
Use Elastic FIFO *3
Whether clock
compensation block on
PCS (i.e., EFIFO) will
be used.
• True *2
• False
False (Default)
8B Mode *3
Whether 8B mode will
be used
• True
• False
N/A since EFIFO is
disabled
SKIP Mode *3
Skip mode used for
EFIFO
• Disabled
• 802.3ae (one word)
• 802.3 (two words)
• PCIe
N/A since EFIFO is
disabled
SKIP Word 0 *3
Skip Word used for
EFIFO
Text field to select
user-defined value
N/A since EFIFO is
disabled
Eanble ALT 0 *3
Whether Alternate
word will be used
• True
• False
N/A since EFIFO is
disabled
ALT SKIP Word 0 *3
Alternate SKIP Word
used for EFIFO
Text field to select
user-defined value
(available only when
Enable ALT 1 is selected
N/A since EFIFO is
disabled
SKIP Word 1 *3
Similar to the
parameters related to
Skip Word 0. *3
Text field to select
user-defined value
N/A since EFIFO is
disabled
Eanble ALT 1 *3
• True
• False
N/A since EFIFO is
disabled
ALT SKIP Word 1 *3
Text field to select
user-defined value
(available only when
Enable ALT 0 is selected
N/A since EFIFO is
disabled
SKIP Word 2 *3
Text field to select
user-defined value
N/A since EFIFO is
disabled
Eanble ALT 2 *3
• True
• False
N/A since EFIFO is
disabled
ALT SKIP Word 2 *3
Text field to select
user-defined value
(available only when
Enable ALT 2 is selected
N/A since EFIFO is
disabled
Transition Density Checker (TDC)
Enable Transition
Density Checker *3
Whether TDC will be
used
• True *1
• False
False
Max Count *3
The threshold value for
TDC
Text field for user-
defined value
(available only when
TDC is enabled)
N/A (TDC not
enabled)
Max Count Scaling
Factor *3
The maximum scaling
factor.
• x1
• x2
• x4
• x8
• x16
N/A (TDC not
enabled)
*3 Further description on these parameters can be found in Section”PCS Blocks in Receiver (RX)
Data Path”
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