L-ET1011C2-CI-D LSI, L-ET1011C2-CI-D Datasheet - Page 31

• Manufacturer Part Number: L-ET1011C2-CI-D
• Manufacturer: LSI

Specifications of L-ET1011C2-CI-D

• Number Of Receivers: 1
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Lead Free Status / Rohs Status: Compliant

Data Sheet
September 2007
LSI Corporation
Hardware Interfaces
LEDs Interface
The ET1011C is capable of sinking or sourcing current to drive LEDs. These LEDs are used to provide link status information
to the user. The ET1011C is capable of automatically sensing the polarity of the LEDs. The device determines the active sense
of the LED based upon the input that is latched during configuration. Thus, if logic 1 is read, the device will drive the pin to
ground to activate the LED; otherwise, it will drive the pin to supply to activate the LED.
The LEDs can be programmed to stretch out events to either 28, 60, or 100 ms. This makes very short events more visible to
the user. All LEDs can be programmed to be on, off, or blink instead of the default status function. This is useful for alterna-
tive function indication under host processor control: for example, a system error during power-on self-check. All LEDs can
be programmed to indicate one of thirteen different status functions instead of the default status function:
The LED drivers can be configured by use of LED control register 1, LED control register 2, and LED control register 3 (MII
registers 27—29).
Table 11. LED
n
n
n
n
n
n
n
LED_TXRX
LED_LNK
LED_1000
Pin Name
LED_100
1000Base-T
100Base-TX
10Base-T
1000Base-T (on) and 100Base-TX (blink)
Link established
Transmit activity
Receive activity
128-Pin
TQFP
Pin #
85
71
70
82
MLCC
84-Pin
(continued)
Pin #
49
50
44
43
MLCC
68-Pin
Pin #
42
43
37
36
1000Base-T LED
Link Established
LED
General-Purpose
LEDs
Pin Description
n
n
n
n
n
n
Transmit or receive activity
Full duplex
Collision
Link established (on) and activity (blink)
Link established (on) and receive activity (blink)
Full duplex (on) and collision (blink)
This LED indicates that the device is operating in
1000Base-T mode. Setting can be overridden.
This LED indicates that the link is established. Setting
can be overridden.
Set to be off by default.
Functional Description
Gigabit Ethernet Transceiver
TruePHY ET1011C
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