參數(shù)資料
型號: IP178A
廠商: Electronic Theatre Controls, Inc.
英文描述: 8-Port 10/100 Ethernet Integrated Switch
中文描述: 8端口10/100以太網(wǎng)集成開關(guān)
文件頁數(shù): 26/44頁
文件大小: 1267K
代理商: IP178A
(Advance Version)
IP178A
LED Interface
IP178A provides four kinds of LED information and two
kinds of LED interfaces. The LED information is selected
by LED_O_SEL[1:0] pins and the LED interface is
selected by DIRECT_LED pin.
When IP178A works at direct mode (DIRECT_LED pin
pulled high), it drives 24 LED pins directly to provide link,
speed and fdx LED. The operation of link, speed and fdx
LED are defined by LED_O_SEL[1:0] pins.
When IP178A works at scan mode (DIRECT_LED pin
pulled low), it drives 12 LED control pins with scan
Label
PHASE0
PHASE1
PHASE2
PHASE3
LINK_A
Port0 link
RX_A
Port0 rx
FDX_A
Port0 fdx
SPEED_A
Port0 speed
LINK_B
Port4 link
RX_B
Port4 rx
FDX_B
Port4 fdx
SPEED_B
Port4 speed
mythology to provide link, speed, fdx and rx LED. The
operation of link, speed, fdx and rx LED are defined by
LED_O_SEL[1:0] pins.
When IP178A works at scan mode, phase pins run
periodically to generate state_1 to state_4. Link_a sends
out the link status of port0 at state_1 and Link_b sends
out the link status of port4 at state_1. IP178A supports rx,
fdx and speed LED in the same way. The detail
description and waveforms are shown in the following
diagram.
State_1
1
0
0
0
State_2
0
1
0
0
State_3
0
0
1
0
State_4
0
0
0
1
Port1 link
Port1 rx
Port1 fdx
Port1 speed
Port2 link
Port2 rx
Port2 fdx
Port2 speed
Port3 link
Port3 rx
Port3 fdx
Port3 speed
Port5 link
Port5 rx
Port5 fdx
Port5 speed
Port6 link
Port6 rx
Port6 fdx
Port6 speed
Port7 link
Port7 rx
Port7 fdx
Port7 speed
Preliminary, Specification subject to change without notice
IP178A-DS-P05
Sep. 09, 2002
26
p0
p1
p2
p3
p0
p1
p2
p3
LINK_a
...
p4
p5
p6
p7
p4
p5
p6
p7
LINK_b
...
State_1
State_2
State_3
State_4
PHASE0
PHASE1
PHASE2
PHASE3
State_1
State_2
State_3
State_4
State_1
(SPEED_a, FDX_a)
(SPEED_b, FDX_b)
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