adm8515 Infineon Technologies Corporation, adm8515 Datasheet - Page 16

• Manufacturer Part Number: adm8515
• Description: Usb2.0 To 10/100 Mbit/s Ethernet Lan Controller Adm8515/x
• Manufacturer: Infineon Technologies Corporation

Table 6
Pin or Ball
No.
54
55
58
59
60
74
2.2.3
Table 7
Pin or Ball
No.
85
86
78
77
88
89
83
80
81
Data Sheet
MII Interface (cont’d)
Physical Layer Interface
Physical Layer Interface
Name
TXD3
TXD2
TXD1
TXD0
TXEN
XLNKSTS
Name
O_CLK25
I_CLK25
RXIP
RXIN
TXOP
TXON
RIBB
ANTEST_A
ANTEST_B
Pin
Type
O
O
I
Pin
Type
O
I
I
O
I
O
Buffer
Type
Buffer
Type
Function
Transmit Data
This is a group of 4 data signals which are driven
synchronously to the TXCLK for transmission to the
external physical unit. TXD[3] is the most significant bit and
TXD[0] is the least significant bit.
Transmit Enable
This signal is synchronous to TXCLK and provides precise
framing for data carried on TXD[3:0]. It is asserted when
TX[3:0] contains valid data to be transmitted. Requires
external pull-down resistor 4.7 kΩ if external PHY is used.
Link Status Indication
External PHY reports link status information to system and
level change trigger. Connect to external PHY’s link status
report pin or pull-down to low if not used.
Function
Crystal Out
25 MHz
Crystal In
25 MHz
Receives Inputs
The differential receives inputs of 100BASE-TX or
10BASE-T, these pins directly input from Magnetic.
Transmits Outputs
The differential transmits outputs of 100BASE-TX or
10BASE-T, these pins directly output to Magnetic.
Reference Bias Resistor
To be tied to an external 10.0 kΩ (1%) resistor which should
be connected to the analog ground at the other end.
PHY Test Pins
16
Interface Description
Rev. 1.21, 2005-11-08
ADM8515/X