Instructions

DO0281R00

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Filtering by frame length

Example: You want to filter all frames that are 1012 bytes long.

Set the following filter registers:

State:

x05 00 00 03 F4 Frame is 1012 bytes long (0x03F4)

x06 00 00 FF FF Mask on 2 bytes

Filter 1

x55 00 00 00 00 No negation of StateFilter

x56 80 00 00 00 Filter1 consists of state filter

Uplink

x65 00 00 00 00 Do not invert output

x66 00 00 00 01 Frame is output at the uplink port if filter 1 applies.

ConfigReg

401 xx xx xx xE Activate filter for CON A port (1110)

Configuring filters

You can set what you want to do with the result of a filter in the Registers menu

"401-410". You can show that a filter applies via the filter LEDs or the external

output.

Information and setting values can be found in the chapter called "TAP

configuration register [}44]".

To be able to use the configuration settings, they have to be saved.

Filters