Kawasaki LSI
4.7M Classification CAM
PRELIMINARY
4.5. CNTL Bus (CNTL[13:0])
The CNTL bus (CNTL[13:0]) defines the operation. The function of the CNTL bus is classified into
four categories as follows:
• The control of a search operation
• The control of a weighted search operation
• The control of a command
• The control of an access to a register
As shown below, CNTL[13:12] defines the operation, and CNTL[11:5] defines the parameters, and
CNTL[4:0] defines the Mask Register number. As for the parameters and the Mask Register number,
refer to the datasheet.
13 12 11
54
0
0 1 Search Operation Field
Global
Mask
Normal Search control
13 12 11
54
0
1 1 Search Operation Field
Global
Mask
Weighted Search
control
13 12 11
00
Operation Field
54
0
Global
Mask
Command control
13 12 11 10
54
0
100
Address Field
Global
Mask
Register control
Version 2.3.8
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