AX88772_07 ASIX [ASIX Electronics Corporation], AX88772_07 Datasheet - Page 37

• Manufacturer Part Number: AX88772_07
• Description: USB to 10/100 Fast Ethernet/HomePNA Controller
• Manufacturer: ASIX [ASIX Electronics Corporation]

8.4.2 Reset Timing
XIN12M
RESET_N
8.4.3 MII Timing (100Mbps)
TX_CLK
TXD [3:0]
TX_EN, TX_ER
RX_CLK
RXD [3:0]
RX_DV, RX_ER
*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.
Symbol
Symbol
Symbol
Trclk
Ttclk
Trch
Ttch
Trcl
Trst
Ttcl
Tth
Trh
Tts
Trs
Reset pulse width (6ms ~10ms) after XIN12M
is running
TX_CLK clock cycle time *1
TX_CLK clock high time *2
TX_CLK clock low time *2
TXD [3:0], TX_EN, TX_ER setup time
TXD [3:0], TX_EN, TX_ER hold time
RX_CLK clock cycle time *1
RX_CLK clock high time *2
RX_CLK clock low time *2
RXD [3:0], RX_DV, and RX_ER setup time
RXD [3:0], RX_DV, and RX_ER hold time
Description
Description
Description
Trst
Ttclk
USB to 10/100 Fast Ethernet/HomePNA Controller
Tts
Trclk
Trs
Ttch Ttcl
72000
Min
Trch Trcl
37
Typ
-
Min
28.0
Min
5.0
3.0
0.5
-
-
-
-
-
-
Max
ASIX ELECTRONICS CORPORATION
-
Typ
40.0
20.0
20.0
Typ
40.0
20.0
20.0
-
-
-
-
Tth
XIN12M clock cycle
Trh
Max
Max
-
-
-
-
-
-
-
-
-
-
Units
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AX88772