88e3015 Marvell Semiconductor, Inc., 88e3015 Datasheet - Page 15

• Manufacturer Part Number: 88e3015
• Description: Integrated 10/100 Fast Ethernet Transceiver
• Manufacturer: Marvell Semiconductor, Inc.

Table 4:
Table 5:
Copyright © 2006 Marvell
October 26, 2006, Advance
88E3 015
26
25
23
22
16
88E30 15
38
35
Serial Management Interface
Network Interface
88 E3018
31
30
26
25
18
88E3 018
48
45
SIGDET
MDC
Pin Nam e
MDIP[0]
MDIN[0]
MDIP[1]
MDIN[1]
Pin Name
MDIO
Document Classification: Proprietary Information
CONFIDENTIAL
Typ e
I/O
I/O
I
Type
I
I/O
Des cription
Media Dependent Interface[0].
In MDI configuration, MDI[0]± is used for the trans-
mit pair. In MDIX configuration, MDI[0]± is used for
the receive pair.
Media Dependent Interface[1].
In MDI configuration, MDI[1]± is used for the
receive pair. In MDIX configuration, MDI[1]± is used
for the transmit pair.
In 100BASE-FX mode, SIGDET indicates whether
a signal is detected by the fiber optic transceiver.
In 100BASE-TX/10BASE-T modes, this pin should
not be left floating. It should be tied either high or
low.
De scrip tio n
MDC is the clock reference for the serial manage-
ment interface. A continuous clock stream is not
required (i.e., MDC can be stopped when the MDC/
MDIO master is not sending a command). The
maximum frequency supported is 8.33 MHz.
MDIO is the management data. MDIO is used to
transfer management data in and out of the device
synchronously to MDC. This pin requires a pull-up
resistor in a range from 1.5 kohm to 10 kohm.
Doc. No. MV-S103657-00, Rev. C
Pin Description
Page 15