ax88783lf ASIX Electronics Corporation, ax88783lf Datasheet - Page 25

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

MII1_REFCLK
MII1_CRSDV
MII1_RXD0
MII1_RXD1
MII1_REFCLKO
MII1_TX_EN
MII1_TXD0
MII1_TXD1
MII1_MDIO
MII1_MDC
MII1_CRS
MII1_COL
Signal Name
2.2.4 RMII Mode
B3/8mA/T
O3/8mA
O3/8mA
O3/8mA
O3/8mA
O3/8mA
I/O
I3
I3
I3
I3
I3
I3
AX88783
Pin No.
31
34
35
36
43
44
49
48
29
30
32
33
Port 1 50MHz RMII reference clock input ± 50 PPM with a duty cycle
between 35% and 65% inclusive.
Port 1 Receive data valid synchronously with respect to the rising edge
of MII1_REFCLK. MII1_CRSDV is asserted high when valid data is
present on receive data bus [1:0].
Port 1 Receive data bit 0 synchronously with respect to the rising edge
of MII1_REFCLK.
Port 1 Receive data bit 1 synchronously with respect to the rising edge
of MII1_REFCLK.
Port 1 50MHz clock output if ICR [13] is set to one.
Port 1 Transmit data enable synchronously with respect to the rising
edge of MII1_REFCLK. MII1_TX_EN is asserted high to indicate a
valid transmit data bus [1:0]
Port 1 Transmit data bit 0 synchronously with respect to the rising edge
of MII1_REFCLK.
Port 1 Transmit data bit 1 synchronously with respect to the rising edge
of MII1_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
MDC is 1MHz.
Pull-Down with a 4.7K ohm resistor to ground
Pull-Down with a 4.7K ohm resistor to ground
25
2-Port 10/100M Fast Ethernet Controller
Description
ASIX ELECTRONICS CORPORATION
Non-PCI 8/16/32-Bit
AX88782/AX88783