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参数资料
型号： GT-48208
厂商： Galileo Technology Services, LLC
英文描述： Advanced Switched Ethernet Controllers for 10+10/100 BaseX(高级交换式 10+10/100 BaseX以太网控制器)
中文描述： 先进的交换式以太网控制器的10 10/100 BaseX（高级交换式10 10/100 BaseX以太网控制器）
文件页数： 86/135页
文件大小： 1619K
代理商： GT-48208
GT-482xx Switched Ethernet Controllers for 10+10/100 BaseX
GALI
LEO
TECHNOLOGY
CONFI
D
ENTI
AL
--
DO
NOT
REPRODUCE
54
Revision 1.2
13.
LED SUPPORT
The serial LED interface in the GT-482xx is similar to the 3-pin LED interface of the GT-48001A device which
requires a PAL to interpret the LED bit stream. Galileo Technology provides reference designs and example PAL
equations in the LED interface application note available from our website.
13.1
LED Indications Interface Description
Table 13 on page 54 details the accessible data on the LED Indications Serial Interface for each of the GT-482xx
ports.
13.2
Detailed LED Signal Description
The LED signals and their activation conditions are described in the following sections.
13.2.1 Primary Port Status LED
The Primary Port Status LED indicates the port status in two operation modes, selectable via the LEDMode input
(LedStb pin sampled at reset).
13.2.1.1 Primary Port Status LED in Mode 0: (LEDMode input is LOW)
In this mode, the Port Status LED provides the following information:
if Port is disabled
Port Status LED is OFF;
else if Link Integrity test failed
Port Status LED blinks once;
else if Partition State detected
Port Status LED blinks twice;
else Everything is OK (Port Status LED is ON)
13.2.1.2 Status LED blink timing (Mode 0)
Link Integrity test failed, Status LED blinks once. Primary status bit is active for 500 ms every 5 secs. Partition,
Status LED blinks twice. Primary status bit is activated twice every 5 secs for 500 ms each time, with a period of
1500 ms between two consecutive activations.
Table 13: LED Signals Available
D a t a D escr ipt io n
S ym bolic S ignal N ame
Ty pe
Primary Port Status LED
primary_port_status
n/a
Transmit data in progress
transmit
dynamic
Receive data in progress
receive
dynamic
Transmit/Receive data in progress
activity
dynamic
Collision active
collision
dynamic
Forwarding of unknown packets enabled
unknown_enable
static
The port is configured as Sniffer
port_is_sniffer
static
Full/Half duplex
full_duplex
static
Receive Buffer Full
rx_buffer_full
dynamic
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