User's Manual

Table Of Contents

CATC MERLIN MOBILE 1.00 CHAPTER 7

User’s Manual Decoding Trace Data

DRAFT

• DH3 (0xB)

• DM5 (0xE)

• DH5 (0xF)

Undefined Packets

These packet types are undefined in version 1.1 of the Bluetooth Specification, but in the

event that you are testing devices based on a version of the specification in which these types

are defined, they will be included in Traces made by Merlin Mobile. However, they will

show up as errors unless the packet types have been defined in a CATC Decoder Scripting

file. For more information, please see “CATC Decoder Scripting Files” on page 78.

• Reserved (0xC)

• Reserved (0xD)

7.1.2 Packet Fields

The fields in packet rows are divided into six distinct blocks.

Note: Frequency hop packets don’t contain all these fields, as they are not real Bluetooth packets.

Packet Number Block

The packet number block contains these fields:

• Packet number (Packet): All packets in a Trace are numbered, starting at 0, in the order

that they were recorded. The packet number field is always first in a row of packet

fields.

• Transmitting device (T): The value of this field indicates whether a master or slave

device transmitted the packet. Possible values are M (master) or S (slave).

• Frequency (Freq): This field’s value is the frequency, in megahertz, used by the trans-

mitting device.

• Bluetooth Clock (BTClock): This field displays the value for the piconet master clock.

Access Code Block

The access code block contains fields from the access code as described in the Bluetooth

Specification, version 1.1. The access code block can be expanded and collapsed to show or

hide the fields, as explained in Section 6.2.3 on page 55.

• Access code type: the first field of the access code block shows the access code type.

Possible values are:

• CAC — Channel Access Code

• DAC — Device Access Code

• GIAC — General Inquiry Access Code

• DIAC — Dedicated Inquiry Access Code

• Preamble (Pre): The value of the preamble of the access code.