User's Manual

Table Of Contents

CATC MERLIN MOBILE 1.00 CHAPTER 7

User’s Manual Decoding Trace Data

DRAFT

• LM (11) = LMP message

• Flow indication (L2FL): The value of the flow indication field in the payload header.

Possible values:

• 1 = flow-on (OK to send)

• 0 = flow-off (stop)

• Payload length indicator (Len): The payload length, in bytes.

• Payload body (Data): The contents of the payload body for a data field payload format

packet. The data field can be expanded and collapsed, as explained in Section 6.2.2 on

page 54.

• Cyclic redundancy check (CRC): The CRC code in the payload.

FHS Packet Payload Fields

• Parity bits (Parity): The parity bits of the first part of the access code sync word of the

transmitting device.

• Lower address part (LAP): The lower address part of the transmitting device.

• Scan repetition field (SR): The value of the scan repetition field in the payload. Possible

values:

• 00 = R0

• 01 = R1

• 10 = R2

•11 = reserved

• Scan period field (SP): The value of the scan period field in the payload. Possible val-

ues:

• 00 = P0

• 01 = P1

• 10 = P2

•11 = reserved

• Upper address part (UAP): The upper address part of the transmitting device.

• Non-significant address part (NAP): The non-significant address part of the transmitting

device.

• Class of device (COD): The class of device for the transmitting unit.

• Member address (Addr): The AM_ADDR to be used by the recipient device.

• Native system clock (CLK): The value of the native system clock of the transmitting

device.

• Page scan mode (PSM): The default page scan mode of the transmitting device. Possible

values:

• 000 = Mandatory scan mode

• 001 = Optional scan mode I