參數(shù)資料
型號(hào)： VSC7216UC-01
廠商： VITESSE SEMICONDUCTOR CORP
元件分類(lèi)： 通信及網(wǎng)絡(luò)
英文描述： Multi-Gigabit Interconnect Chip
中文描述： SPECIALTY TELECOM CIRCUIT, PBGA256
封裝： 27 X 27 MM, 1.27 MM PITCH, BGA-256
文件頁(yè)數(shù)： 16/38頁(yè)
文件大?。?/td> 561K
代理商： VSC7216UC-01
VSC7216-01
Multi-Gigabit Interconnect Chip
Multi-Gigabit Interconnect Chip
Preliminary Data Sheet
VITESSE
Page 16
G52352-0, Rev 3.2
05/05/01
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano
Camarillo, CA 93012
Tel: (800) VITESSE
FAX: (805) 987-5896
Email: prodinfo@vitesse.com
Internet: www.vitesse.com
Link Status Outputs
The receiver ERRn, KCHn and IDLEn outputs indicate status for each channel as shown in Table 8. Since
this status is encoded, multiple conditions could occur simultaneously so the states are prioritized as indicated
(1 being highest priority). For example, if both Out-of-Band and Disparity Errors occur, only an Out-of-Band
Error is reported because it has higher priority.
The ERRn, KCHn and IDLEn status signals apply to the data on Rn(7:0) on a per-character basis. The only
exception to this is the Underrun/Overrun indication, which is asserted coincident with the duplicated character
when an underrun occurs, and is asserted following the deleted character (i.e., on the cycle where the deleted
character should have appeared) when overrun occurs.
Table 8: Receiver Status Signals
ERRn
KCHn
IDLEn
Priority
Link Status
0
0
0
7
Valid Data Transmission: A valid 10B data character with correct disparity
was received. The correctly decoded version of this character is on
Rn(7:0).
Underrun/Overrun Error: The elastic buffer has not been able to add/drop
an IDLE when required. Data on Rn(7:0) is invalid.
Kxx.x Special Character Detected (not IDLE): A valid 10B special
character with correct disparity was received. The correctly decoded
version of this character, per Table 4, is on Rn(7:0).
IDLE Detected: A valid IDLE character (K28.5) with correct disparity was
received. The correctly decoded version of this character, per Table 4, is on
Rn(7:0).
Out-of-Band Error Detected: A character was received which was not a
valid 10B data or control character. Data on Rn(7:0) is invalid.
Disparity Error Detected: A valid 10B character was received which did
not have the expected disparity. Rn(7:0) is invalid.
Loss of Synchronization: The receiver state machine is in the Loss-of-Sync
state. Data on Rn(7:0) is invalid.
RESYNC: The receiver state machine is in the Re-Synchronization state.
Data on Rn(7:0) is a decoded version of K28.1, K28.5 or K28.7.
0
0
1
1
0
1
0
6
0
1
1
5
1
0
0
3
1
0
1
4
1
1
0
2
1
1
1
2
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