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參數(shù)資料
| 型號(hào)： | KL5KUSB121_L |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | USB to 10/100 Ethernet Controller |
| 中文描述： | USB接口10/100以太網(wǎng)控制器 |
| 文件頁數(shù)： | 9/17頁 |
| 文件大?。?/td> | 310K |
| 代理商： | KL5KUSB121_L |
KL5KUSB121
USB to 10/100 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
9
Ver. 1.1
PRELIMINARY
AC CHARACTERISTICS
U2E chip has 4 types of interfaces – USB port, Ethernet PHY port, SRAM
port and Serial EEPROM port. AC timing of these interfaces are described
below along with appropriate timing charts. Chip also requires the AC timing
of system clock input CLKI and system reset RESETN.
1. CLKI and RESETN Signal
Figure 1.1 CLKI and RESETN AC Timing
Table 1.1 CLKI AC Characteristics (over recommended range)
Symbol
Parameter
Min
Typ
Max
Unit
Not
e
1
1
Tpck
Fck
CLKI one cycle time
CLKI frequency
–
–
20.83
48
–
–
ns
MH
z
ns
ns
Tckh
Tckl
CLKI high time
CLKI low time
10
10
–
–
–
–
1
1
Note: 1) The clock is used as an USB sampling clock and to
generate the internal 32MHz clock pulse.
Table 1.2 RESETN AC characteristics (over recommended range)
Symbol
Parameter
Min
Typ
Max
Unit
Not
e
2
Tprst
RESETN low pulse
width
Note: 2) RESETN is an asynchronous, low assert, reset signal.
Minimum assertion is 10 times of Tpck (210 ns).
10
–
–
Tpc
k
2. USB Interface
The USB signals – VP and VM are the pair signals of the differential output driver and
receiver. The USB to Ethernet operates under USB Full speed (12Mb/s).
USB signals are fully compatible with USB spec rev 1.1.
Tpck
Tckh
Tckl
CLKI
(IN)
Tprst
RESETN
(IN)
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| KL5KUSB220 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:USB2.0 to 100 Ethernet Controller |
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