參數(shù)資料
型號(hào): KL5KUSB101
廠商: Electronic Theatre Controls, Inc.
英文描述: USB to Ethernet Controller
中文描述: USB到以太網(wǎng)控制器
文件頁(yè)數(shù): 10/17頁(yè)
文件大?。?/td> 300K
代理商: KL5KUSB101
KL5KUSB101
USB to Ethernet Controller
Kawasaki LSI
2570 North First Street
Suite 301
San Jose, CA 95131
Tel: (408) 570-0555
Fax: (408) 570-0567
www.klsi.com
10
Ver. 2.4
3. PHY Interface
USB to Ethernet exchanges the serial bit data and messages to the external PHY chip.
3.1 U2E to PHY transmit
Figure 3.1.1 USB to Ethernet to PHY Transmit AC Timing
Table 3.1.1 PHY Transmit AC Characteristics (over recommended range)
Symbol
Parameter
Min
Typ
Max
Unit
Not
e
1
1
Ttck
Ftck
PHYTCLK period
PHYTCLK frequency
100
10
ns
MH
z
ns
ns
Ttch
Ttcl
Tden1
PHYTCLK high width
PHYTCLK low width
PHYTEN assert delay
from PHYTCLK rise
PHYTEN negate delay
from PHYTCLK fall
PHYTXD valid delay
from PHYTCLK rise
PHYTEN valid delay
from PHYTCLK fall
Note: 1) PHY generates the 10MHz clock.
2) 30pF capacitor external load is assumed.
50
50
30
ns
2
Tden2
0
ns
2
Tdtd1
28
ns
2
Tdtd2
0
ns
2
Figure 3.1.2 PHY SQE function AC Timing at Transmit
PHYTEN
(OUT)
PHYCOL
(IN)
Tcol
Tpco
last
PHYTEN
(OUT)
PHYTXD
(OUT)
first
PHYTCLK
(IN)
Ttch
Ttck
Tden1
Tdtd1
Tden2
Tdtd2
Ttcl
98.09.02 updated
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