Altera SerialLite II Protocol - Manual (Page 26)

26 Altera Corporation
SerialLite II Protocol Reference Manual
Physical Layer Description
Training Sequence One Ordered Set Sequence {|TS1|}
The first link training sequence consists of eight ordered sets as shown in
Table 2–13 . This sequence is used to initialize the links.
Training Sequence Two Ordered Set Sequence {|TS2|}
The second link training sequence consists of eight ordered sets as shown
in
Table 2–14 . This sequence is used to indicate that link initialization is
complete, and forms part of the link-deskew sequence.
Table 2–13. {|TS1|} Composition
Field Ordered Set Description
TC ||COM|| Comma (or Sync) identifier
LN ||DAT|| Lane number. A number from 0 to 255 (in
8-bit space, encoded before transmission,
with 0 representing the most significant
lane)
MLN ||DAT|| Maximum lane number. A number from 0 to
255 (in 8-bit space, encoded before
transmission, with 0 representing a single
lane implementation)
TSZ ||DAT|| Transfer size. Valid numbers are 1, 2, and
4. The transfer size defines the number of
columns for a contiguous burst of data; 1
column, 2 columns, 4 columns, and all
other values are reserved.
RSV 3x||DAT|| Reserved. Set to all zeros (D0.0); repeated
three times
T1 ||DAT|| First training sequence identifier (D10.2)
Table 2–14. {|TS2|} Composition
Field Ordered Set Description
TC ||COM|| Comma (or Sync) identifier
LN ||DAT|| Lane number. A number from 0 to 255 (in
8-bit space, encoded before transmission,
with 0 representing the most significant
lane)
MLN ||DAT|| Maximum lane number. A number from 0 to
255 (in 8-bit space, encoded before
transmission, with 0 representing a single
lane implementation)