DS2502/5/6-UNW

3 of 3

102099

SAMPLE 2: EUI-64 FireWire

(unused)

CRC16

Company ID Value

Extension ID Value

Project ID

Length

MSB

LSB

MSB

LSB

MSB

LSB

MSB LSB

17 bytes

2 bytes

3 bytes constant

5 bytes serialization

4 bytes

1 byte

FFH

assigned by IEEE

constant

0CH

high address

low address

PHYSICAL ADDRESS AND DATA MAPPING Figure 2b

ADDRESS

0E

0D

0C

0B

0A

09

08

07

06

05

04

03

02

01

00

DATA

xx

xx

ch

cm

cl

hh

hm

mm

ml

ll

00

00

pp

pp

0C

xx xx = CRC16, value depends on actual data

ch cm cl = high, medium and low byte of the IEEE assigned “Company ID”

hh hm mm ml ll = high, medium and low byte of the “Extension ID” or serialization

pp pp = Project ID assigned by Dallas Semiconductor

FireWire