TDM Factor Settings for Clock Modes - 2.3 English

Binary CAM Search LogiCORE IP Product Guide (PG317)
Document ID
PG317
Release Date
2022-06-08
Version
2.3 English
The following table shows the difference in LOOKUP_INTERFACE_FREQ for SINGLE_CLOCK and DUAL_CLOCK modes.
Table 1. TDM Factor Settings for Clock Modes
TDM Factor LOOKUP RATE [Msps] LOOKUP INTERFACE FREQ [MHz] RAM CLOCK [MHz] CLOCKING MODE
4 Up to 150 Minimum 4xLOOKUP_RATE LOOKUP_IF_FREQ SINGLE CLOCK
4 Up to 150 Minimum LOOKUP_RATE Minimum 4xLOOKUP_RATE DUAL CLOCK
2 Up to 300 Minimum 2xLOOKUP_RATE LOOKUP_IF_FREQ SINGLE CLOCK
2 Up to 300 Minimum 2xLOOKUP_RATE Minimum 2xLOOKUP_RATE DUAL CLOCK
1 Up to 600 LOOKUP_IF_FREQ LOOKUP_IF_FREQ SINGLE CLOCK
Note: Dual clock mode is recommended for Lookup rates up to 300 Mlps.