ax88783lf ASIX Electronics Corporation, ax88783lf Datasheet - Page 19

• Manufacturer Part Number: ax88783lf
• Description: 2-port 10/100m Fast Ethernet Controller
• Manufacturer: ASIX Electronics Corporation

MII0_REFCLK
MII0_CRSDV
MII0_RXD0
MII0_RXD1
MII0_REFCLKO
MII0_TX_EN
MII0_TXD0
MII0_TXD1
MII0_MDIO
MII0_MDC
MII0_CRS
MII0_COL
Signal Name
2.1.4 RMII Mode
O3/8mA
O3/8mA
O3/8mA
O3/8mA
B3/8mA
O3/8mA
I/O
I3
I3
I3
I3
I3
I3
AX88783
Pin No.
112
113
120
121
107
108
100
101
70
71
91
92
Port 0 50MHz RMII reference clock input ± 50 PPM with a duty cycle
between 35% and 65% inclusive.
Port 0 Receive data valid synchronously with respect to the rising edge
of MII0_REFCLK. MII0_CRSDV is asserted high when valid data is
present on receive data bus [1:0].
Port 0 Receive data bit 0 synchronously with respect to the rising edge
of MII0_REFCLK.
Port 0 Receive data bit 1 synchronously with respect to the rising edge
of MII0_REFCLK.
Port 0 50MHz reference clock output if ICR [12] is set to one.
Port 0 Transmit data enable synchronously with respect to the rising
edge of MII0_REFCLK. MII0_TX_EN is asserted high to indicate a
valid transmit data bus [1:0]
Port 0 Transmit data bit 0 synchronously with respect to the rising edge
of MII0_REFCLK.
Port 0 Transmit data bit 1 synchronously with respect to the rising edge
of MII0_REFCLK.
MII management data. Serial data input/output transferred from/to the
externally connected MAC device. The transfer protocol should
conform to the IEEE 802.3u MII spec.
MII management clock output to PHY. All data transferred on MDIO
are synchronized to the rising edge of this clock. The frequency of
MII0_MDC is 1MHz.
Pull-Down with a 4.7K ohm resistor to ground
Pull-Down with a 4.7K ohm resistor to ground
19
2-Port 10/100M Fast Ethernet Controller
Description
ASIX ELECTRONICS CORPORATION
Non-PCI 8/16/32-Bit
AX88782/AX88783