88e1240 Marvell Semiconductor, Inc., 88e1240 Datasheet - Page 14

• Manufacturer Part Number: 88e1240
• Description: Integrated 10/100/1000 Gigabit Ethernet Transceiver
• Manufacturer: Marvell Semiconductor, Inc.

Table 9:
Table 10:
Doc. No. MV-S103821-00, Rev. A
Page 14
1 76- T QF P
Pin #
132
131
120
1 76- T QF P
Pin #
109
108
106
105
110
Management Interface/Control
JTAG
19 6-TF BGA
Pin #
E12
D12
D13
19 6-TF BGA
Pin #
H13
H14
J12
J13
G13
Alaska
Integrated 10/100/1000 Gigabit Ethernet Transceiver
®
P i n N a m e
MDC
MDIO
INTn
P i n N a m e
TDI
TMS
TCK
TRSTn
TDO
88E1240 Product Brief
Document Classification: Proprietary Information
P i n
Ty pe
I
I/O
OD
P i n
Ty pe
I, PU
I, PU
I, PU
I, PU
O
Desc rip t ion
Management Clock pin.
MDC is the management data clock reference for
the serial management interface. A continuous
clock stream is not expected. The maximum fre-
quency supported is 8.3 MHz.
Management Data pin.
MDIO is the management data. MDIO transfers
management data in and out of the device syn-
chronously to MDC. This pin requires a pull-up
resistor in a range from 1.5 kohm to 10 kohm.
Interrupt pin.
Desc rip t ion
Boundary scan test data input. TDI contains an
internal 150 kohm pull-up resistor.
Boundary scan test mode select input. TMS con-
tains an internal 150 kohm pull-up resistor.
Boundary scan test clock input. TCK contains an
internal 150 kohm pull-up resistor.
Boundary scan test reset input. Active low.
TRSTn contains an internal 150 kohm pull-up
resistor. For normal operation, TRSTn should be
pulled low with a 4.7 kohm pull-down resistor.
Boundary scan test data output.
Copyright © 2011 Marvell
May 4, 2011, Advance