參數(shù)資料
型號: ORT42G5-EV
廠商: Lattice Semiconductor Corporation
文件頁數(shù): 39/119頁
文件大?。?/td> 0K
描述: BOARD EVAL ORT42G5/CABLE/ADAPTER
標準包裝: 1
系列: ORCA® 4 系列
類型: FPGA
適用于相關(guān)產(chǎn)品: ORT42G5
所含物品: 板,線纜,電源
其它名稱: ORT42G5EV
Lattice Semiconductor
ORCA ORT42G5 and ORT82G5 Data Sheet
26
Figure 10. XAUI Link Synchronization State Diagram
Table 5. XAUI Link Synchronization State Diagram Notation – Variables
Variable
Description
sync_status
FAIL: Lane is not synchronized (correct 10-bit alignment has not been established).
OK: Lane is synchronized.
OK_NOC: Lane is synchronized but a comma character has not been detected in the past 200 code groups.
enable_CDET
TRUE: Align subsequent 10-bit words to the boundary indicated by the next received comma.
FALSE: Maintain current 10-bit alignment.
gd_cg
Current number of consecutive cg_good indications.
Loss_of_Sync
sync_status <= FAIL
enable_CDET <= TRUE
sync_complete
reset
Comma_Detect_1
enable_CDET <= FALSE
cg_bad
cg_comma
cg_bad
Comma_Detect_2
Comma_Detect_3
cg_comma
Sync_Acq’d_1
Sync_Acq’d_1a
sync_status <= OK
no_comma & cg_bad
sync_status <= OK_NOC
cg_bad
cg_comma
Sync_ Acq’d_2
Sync_ Acq’d_3
Sync_ Acq’d_4
Sync_ Acq’d_2a
Sync_ Acq’d_3a
Sync_ Acq’d_4a
gd_cg <= gd_cg + 1
gd_cg <= 0
cg_good
cg_good x
(gd_cg ! = 3)
cg_bad
cg_good x (gd_cg = 3)
cg_good x
(gd_cg ! = 3)
cg_bad
cg_good*(gd_cg=3)
cg_good
cg_bad
cg_good x (gd_cg = 3)
cg_good
cg_good x
(gd_cg ! = 3)
cg_bad
gd_cg <= 0
gd_cg <= gd_cg + 1
~ no_comma & cg_bad
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