Teledyne-lecroy SierraFC Verification Script Engine Reference Manu Manual de usuario descargar pdf (Pagina 43)

Verification Script Engine Reference Manual

18 FC data frame retrieving functions

This group of functions covers VSE capability to extract information about FC data frame headers

other than Frame Header. Frame Header fields are provided as members of input context for data

frame trace event. ( See Data frame-specific set of members for details )

If either header or field is not present in the frame – all of those functions will return null-value ( see

CSL Manual –for details about null-value ).

18.1 GetNetHField()

Extracts information about Network header field. ( Currently not implemented. )

Format : GetNetHField ( net_fld )

Parameters:

net_fld - Network header field identifier that can be one of the following values:

identifier

Meaning

_D_NAA_H

Network Destination Address (high order bits)

_D_NAA_L

Network Destination Address (low order bits)

_S_NAA_H

Network Source Address (high order bits)

_S_NAA_L

Network Source Address (low order bits)

Example:

val = GetNetHField ( _S_NAA_L );

NOTE : If there are some reserved fields in headers – they can be retrieved by using some

special keywords in header retrieving functions :

Keyword

Length

_RES_1

1 bit field

_RES_2

2 bit field

_RES_5

5 bit field

_RES_7

7 bit field

_RES_8

8 bit field

_RES_16

16 bit field

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 63 64

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Teledyne-lecroy SierraFC Verification Script Engine Reference Manu Manual de usuario Pagina 43