參數(shù)資料
型號(hào): IXF1010
廠商: INTEL CORP
元件分類: 微控制器/微處理器
英文描述: 10 CHANNEL(S), 1000M bps, LOCAL AREA NETWORK CONTROLLER, CBGA552
封裝: 25 X 25 MM, 1 MM PITCH, CERAMIC, BGA-552
文件頁(yè)數(shù): 37/116頁(yè)
文件大?。?/td> 1392K
代理商: IXF1010
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10-Port 100/1000 Mbps Ethernet MAC — IXF1010
Preliminary Datasheet
27
Document #: 249839
Revision #: 001
Rev. Date: April 29, 2002
3.2.2
Start-Up Parameters
3.2.2.1
CALENDAR_LEN
CALENDAR_LEN specifies the length of each calendar sequence. As the IXF1010 is a 10-port
device, CALENDAR_LEN is fixed at 10 for both TX and RX data paths.
3.2.2.2
CALENDAR_M
CALENDAR_M specifies the number of times the calendar port status sequence is repeated
between the framing and DIP2 cycle of the calendar sequence.
In the IXF1010, the TX path CALENDAR_M is fixed at 1, therefore the port status for ports 0 - 9
will be transmitted only once between the framing and DIP2 cycle of the calendar sequence.
In the IXF1010, the RX path CALENDAR_M is configurable. The default value of expected RX
on page 113, bits 3 to 0 specify CAL_M, which is the number of times the calendar sequence will
be repeated over the default value of 1.
The default value for CAL_M is 0, thus the default value of both Tx and RX CALENDAR_M
parameters is 1.
3.2.2.3
DIP2_Thr
DIP2_Thr is a parameter specifying the number of consecutive correct DIP2s required by the RX
SPI4-2 to validate a calendar sequence and therefore terminate sending training sequences.
parameter. The default value for DIP2_Thr is 1.
Figure 7. Per-Port State Diagram with Transitions at Control Words
PORT [n]
INACTIVE
PORT [n]
ACTIVE
PORT [n]
PAUSED
PC[n] & -SOP
(IC I PC[-n]) & -EOP
PC[n] & EOP & SOP
PC[n] & SOP
(IC I PC[-n]) & EOP
PC[n] & -EOP & -SOP
Key:
IC:
Idle Control Word
PC[n]:
Payload Control Word for port n
PC[-n):
Payload Control Word for a port other than port n
SOP:
Start-of-Packet in Payload Control Word
-SOP:
No Start-of-Packet in Payload Control Word
EOP:
End-of-:acket in Control Word
-EOP:
No End-of-Packet in Control Word
&:
AND
I:
OR
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