AX88178
USB to 10/100/1000 Gigabit Ethernet/HomePNA Controller
Trclk
Trch Trcl
RX_CLK
Trs
Trh
RXD [3:0]
RX_DV, RX_ER
Symbol
Description
Min
-
-
-
3.0
0.5
Typ
40.0
20.0
20.0
-
Max
Units
ns
ns
ns
ns
Trclk RX_CLK clock cycle time *1
-
-
-
-
-
Trch
Trcl
Trs
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
Trh
-
ns
*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.
7.4.6 Station Management Timing
Tclk
MDC
Tch
Tcl
MDIO (as output)
Ts
Th
MDIO (as input)
Symbol
Tclk MDC clock cycle time
Tch MDC clock high time
Description
Min
-
-
-
0
Typ
666
333
333
-
Max
-
-
-
2
-
Units
ns
ns
ns
ns
Tcl
MDC clock low time
Tod MDC clock falling edge to MDIO output delay
Ts
Th
MDIO data input setup time
MDIO data input hold time
10
0
-
-
ns
ns
-
32
ASIX ELECTRONICS CORPORATION
ASIX [ ASIX ELECTRONICS CORPORATION ]
