IP113F datasheet(17/46 Pages) ETC2

17 / 46 page

IP113F

Preliminary Data Sheet

Loop back test (continued)

Programming procedure for In-band loop back test

Step

Description

C3~C2

C15~C8

Note

Set local IP113F TP receive disabled

Set Reg. 20.14 off

Set remote T2 timer disabled by

maintenance frame

11 11 11 11

Reg24 and Reg 25

Set remote IP113F to be loop back mode

enabled by maintenance frame

00 00 00 01

TS-1000: loop

back set

Remote IP113F sends back loop back

acknowledge

Send loop back test maintenance frame

11 01 10 11

Reg24 and Reg 25

Remote IP113F send back acknowledge

Local IP113F stores the loop back

maintenance to Reg. 26~30 and checks

CRC bit is in Reg. 26.12

Repeat step 4~6 continuously

Set remote IP113F to be loop back mode

disable by maintenance frame

00 00 00 00

TC-1000: loop

back end

Remote IP113F sends back loop back

acknowledge

Set local IP113F TP receive enable

Set Reg. 20.14 on

Auto in-band loop back test

Step

Description

Set pin AUTO_TEST to “1” (The following step is executed automatically by IP113F)

1.1

Central IP113F sends loop back start request to remote IP113F and goes to CST2 state.

1.2

Remote IP113F sends loop back start acknowledge to Central IP113F and enters loop back

test mode.

1.3

Central IP113F goes to CST1 state and begins sending 15 frames in 64 bytes.

1.4

Remote IP113F loops back the received frames at the TP port’s PMD sub-layer.

1.5

Central IP113F checks the loop back frames and reports the result.

The LED pin LED_RMT_TP_LINK is Flash (on 80ms / off 20ms) during the auto loop back test

period (AUTO_TEST is “1”).

The LED pin LED_RMT_TP_SPD indicates the loop back test complete (on) (when

AUTO_TEST is “1”). The LED pin LED_RMT_TP_FDX indicates the loop back test ok (on)

(when AUTO_TEST is “1”)

If another auto loop back test is needed, set AUTO_TEST to “0” and then “1”. That is,

AUTO_TEST is triggered whenever there is a low-to-high transition on this pin.

Confidential.

17/46

Aug. 20, 2003

IP113F-DS-R02

IP113F Datasheet(PDF) 17 Page - List of Unclassifed Manufacturers

IP113F Datasheet(HTML) 17 Page - List of Unclassifed Manufacturers

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Datasheet Download

Link URL