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Optical module interface signal descriptions – Intel IXF1104 User Manual

Page 53

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Intel

®

IXF1104 4-Port Gigabit Ethernet Media Access Controller

53

Datasheet

Document Number: 278757

Revision Number: 009

Revision Date: 27-Oct-2005

Table 8. Transmit Pause Control Interface Signal Descriptions

Signal Name

Ball

Designator

Type

Standard

Description

TXPAUSEADD2
TXPAUSEADD1
TXPAUSEADD0

P21
P20
N20

Input

2.5 V

CMOS

TXPAUSEADD[2:0] is the port selection address
for pause frame insertion.

TXPAUSEFR

T20

Input

2.5 V

CMOS

TX Pause Interface Strobe.

Table 9. Optical Module Interface Signal Descriptions (Sheet 1 of 2)

Signal Name

Ball

Designator

Type

Standard

Description

TX_DISABLE_0
TX_DISABLE_1
TX_DISABLE_2
TX_DISABLE_3

AB3
AA7

AD16
AA14

Open
Drain

Output*

2.5 V

CMOS

Transmit Disable:

TX_DISABLE_0:3 outputs disable the Optical
Module Interface transmitter. An external pull-up
resistor usually resident in an optical module is
required for proper operation.

NOTE: These signals are multiplexed with the

TXD[4]_n bits of the GMII Interface

NOTE: *Dual-mode I/O

Normal operation: Open drain output
Boundary Scan Mode: Standard CMOS
output

MOD_DEF_0
MOD_DEF_1
MOD_DEF_2
MOD_DEF_3

Y6

AD10

W22

T16

Input

2.5 V

CMOS

MOD_DEF_0:3 inputs determine when an
Optical Module Interface is present.

NOTE: These signals are multiplexed with the

RXD[4]_n bits of the GMII interface.

RX_LOS_0
RX_LOS_1
RX_LOS_2
RX_LOS_3

AB5

AA11

V19
T18

Input

2.5 V

CMOS

RX_LOS_0:3 inputs determine when the Optical
Module Interface receiver loses synchronization.

NOTE: These signals are multiplexed with the

RXD[6]_n bits of the GMII interface.

TX_FAULT_0
TX_FAULT_1
TX_FAULT_2
TX_FAULT_3

Y5

AC11

V20
T17

Input

2.5 V

CMOS

TX_FAULT_0:3 inputs determine an Optical
Module Interface transmitter fault.

NOTE: These signals are multiplexed with the

RXD[5]_n bits of the GMII Interface.

RX_LOS_INT

P19

Open
Drain

Output*

2.5 V

CMOS

Receiver Loss of Signal Interrupt.
RX_LOS_INT is an open drain interrupt output to
signal an RX_LOS condition.

NOTE: An external pull-up resistor is required

for proper operation.

NOTE: *Dual-mode I/O

Normal operation: Open drain output
Boundary Scan Mode: Standard CMOS
output