mcf5282 Freescale Semiconductor, Inc, mcf5282 Datasheet - Page 349

• Manufacturer Part Number: mcf5282
• Manufacturer: Freescale Semiconductor, Inc

The user must initialize the hash table registers. Use this CRC32 polynomial to compute the hash:
Table 17-37
Freescale Semiconductor
contains example destination addresses and corresponding hash values.
X
32
+
X
26
+
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
X
23
DBFF_FFFF_FFFF
BBFF_FFFF_FFFF
B5FF_FFFF_FFFF
D5FF_FFFF_FFFF
FBFF_FFFF_FFFF
8BFF_FFFF_FFFF
0BFF_FFFF_FFFF
3BFF_FFFF_FFFF
7BFF_FFFF_FFFF
5BFF_FFFF_FFFF
C7FF_FFFF_FFFF
A7FF_FFFF_FFFF
B9FF_FFFF_FFFF
C9FF_FFFF_FFFF
65FF_FFFF_FFFF
55FF_FFFF_FFFF
15FF_FFFF_FFFF
35FF_FFFF_FFFF
95FF_FFFF_FFFF
F5FF_FFFF_FFFF
27FF_FFFF_FFFF
07FF_FFFF_FFFF
57FF_FFFF_FFFF
77FF_FFFF_FFFF
F7FF_FFFF_FFFF
97FF_FFFF_FFFF
99FF_FFFF_FFFF
F9FF_FFFF_FFFF
+
Table 17-37. Destination Address to 6-Bit Hash
X
22
48-bit DA
+
X
16
+
X
12
+
X
11
+
X
6-bit Hash
10
(in hex)
0x1A
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1B
0xC
0xD
0xA
0xB
0xE
0xF
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
0x8
0x9
+
X
8
+
X
7
+
X
5
Hash Decimal
+
X
Value
4
+
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
0
1
2
3
4
5
6
7
8
9
X
2
+
X
+
1
Fast Ethernet Controller (FEC)
Eqn. 17-2
17-39