AX88172A ASIX [ASIX Electronics Corporation], AX88172A Datasheet - Page 30

• Manufacturer Part Number: AX88172A
• Description: USB 2.0 to 10/100M Fast Ethernet Controller
• Manufacturer: ASIX [ASIX Electronics Corporation]

TXEN / TXD[3:0]
RXDV / RXD[3:0]
*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
Ttclk
Trclk
Ttch
Trch
Ttcl
Trcl
Trh
Tth
Trs
9.4.4 MII Timing
Tts
TXCLK
RXCLK
TXCLK clock cycle time *1
TXCLK clock high time *2
TXCLK clock low time *2
TXD [3:0], TXEN setup to rising TXCLK
TXD [3:0], TXEN hold from rising TXCLK
RXCLK clock cycle time *1
RXCLK clock high time *2
RXCLK clock low time *2
RXD [3:0], RXDV setup to rising RXCLK
RXD [3:0], RXDV hold from rising TXCLK
Ttch
Ttch
Trch
Trch
Ttcl
Ttcl
Description
Description
Trcl
Trcl
Ttcl k
Ttcl k
Tts
Trs
Trclk
Trclk
USB 2.0 to 10/100M Fast Ethernet Controller
30
Min
Min
23.0
7.0
5.0
3.5
-
-
-
-
-
-
ASIX ELECTRONICS CORPORATION
Tth
Typ
40.0
20.0
20.0
Typ
40.0
20.0
20.0
AX88772A/AX88172A
-
-
-
-
Trh
Max
Max
-
-
-
-
-
-
-
-
-
-
Low-pin-count
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns