參數(shù)資料
型號(hào): AX88772_07
廠商: ASIX Electronics Corporation
英文描述: USB to 10/100 Fast Ethernet/HomePNA Controller
中文描述: USB至10/100快速以太網(wǎng)/電話線網(wǎng)絡(luò)控制器
文件頁(yè)數(shù): 37/43頁(yè)
文件大?。?/td> 318K
代理商: AX88772_07
ASIX ELECTRONICS CORPORATION
37
AX88772
USB to 10/100 Fast Ethernet/HomePNA Controller
8.4.2 Reset Timing
XIN12M
RESET_N
Symbol
Trst
Reset pulse width (6ms ~10ms) after XIN12M
is running
8.4.3 MII Timing (100Mbps)
Ttclk Ttch Ttcl
TX_CLK
Tts Tth
TXD [3:0]
TX_EN, TX_ER
Symbol
Description
Ttclk
TX_CLK clock cycle time *1
Ttch
TX_CLK clock high time *2
Ttcl
TX_CLK clock low time *2
Tts
TXD [3:0], TX_EN, TX_ER setup time
Tth
TXD [3:0], TX_EN, TX_ER hold time
Trclk Trch Trcl
RX_CLK
Trs Trh
RXD [3:0]
RX_DV, RX_ER
Symbol
Description
Trclk
RX_CLK clock cycle time *1
Trch
RX_CLK clock high time *2
Trcl
RX_CLK clock low time *2
Trs
RXD [3:0], RX_DV, and RX_ER setup time
Trh
RXD [3:0], RX_DV, and RX_ER hold time
*1: For 10Mbps, the typical value of Ttclk and Trclk shall scale to 400ns.
*2: For 10Mbps, the typical value of Ttch, Ttcl, Trch, and Trcl shall scale to 200ns.
Description
Min
72000
Typ
-
Max
-
Units
XIN12M clock cycle
Min
-
-
-
28.0
5.0
Typ
40.0
20.0
20.0
-
-
Max
-
-
-
-
-
Units
ns
ns
ns
ns
ns
Min
-
-
-
3.0
0.5
Typ
40.0
20.0
20.0
-
-
Max
-
-
-
-
-
Units
ns
ns
ns
ns
ns
Trst
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