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IP175G датащи(PDF) 18 Page - List of Unclassifed Manufacturers

номер детали IP175G
подробное описание детали  5 Port 10/100 Ethernet Integrated Switch
PDF  69 Pages
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производитель  ETC2 [List of Unclassifed Manufacturers]
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IP175G датащи(HTML) 18 Page - List of Unclassifed Manufacturers

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IP175G/GI/GH/GHI
Data Sheet
18 / 69
November 27, 2012
Copyright © 2012, IC Plus Corp.
IP175Gx-DS-R01.3
4.5
Auto Factory Test (AFT) Mode
IP175G/GH implements an AFT mechanism, which is very useful for switch pre-test as Figure 5
AFT system diagrams. When this function is triggered by hardware pin AFT, IP175G/GH physical ports
are connected either port-pairs loopback or self-loopback and then IP175G/GH will generate frames for
TX of all ports and LED will flash.
For example, port1 and port2 are connected to each other (loopback). Check the LED of port1 and
port2 is light-on, and then trigger this AFT function and wait a moment trigger again. If the test result is
passed (no CRC or packet loss), show LED of port1 and port2 light-on. Otherwise, show LED light-off
when CRC or packet loss is happened.
Procedure:
1. Power On
2. Wait for someone Push AFT button to start test
3. IP175G/GH transmit packet and LED flash
4. If Push AFT button then goto step 5, else goto step 3
5. LED Show the test result, goto step 2
Figure 6
Auto Factory Test Application Diagram
4.6
Reset
Hardware Reset: Hardware pin RESETB should be asserted LOW at least for 10ms to reset
IP175G/GH, and gets initial values from pins, registers and EEPROM after reset.
IP175G
P0
P1
P2
P3
P4
AFT
PVDD
RJ45 Cable loopback
Pin1
Pin3
Pin2
Pin6



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