Rainbow Electronics MAX66020 - Manual (Page 24)

MAX66020
ISO/IEC 14443 Type B-Compliant
1Kb Memory Fob
24 ______________________________________________________________________________________
MAX66020K-000AA+
TOP VIEW
SIDE VIEW
54mm
28mm 7.7mm
1.6mm
Key Fob Mechanical Drawing
Figure 32. CRC-16-CCITT Generator
1ST
STAGE
MSb
LSb
2ND
STAGE
7TH
STAGE
8TH
STAGE
6TH
STAGE
X 0 X 1
3RD
STAGE
4TH
STAGE
5TH
STAGE
X 2 X 3 X 4
POLYNOMIAL = X 16 + X 12 + X 5 + 1
INPUT DATA
X 5 X 6
11TH
STAGE
X 11
9TH
STAGE
10TH
STAGE
X 9 X 10
12TH
STAGE
15TH
STAGE
14TH
STAGE
13TH
STAGE
X 12 X 13 X 14
X 7
16TH
STAGE
X 16 X 15 X 8