R8A20110BG Datasheet | Renesas

Description “MARIE” is a new RENESAS Ternary CAM co-processor targeted for the network packet classification and signature matching application. MARIE’s 1 M-bit special features , small package and reduced pin count interface makes it .. suitable for cost sensitive platforms. MARIE provides a 36-bit Data bus SSTL-2 interface and is able to achieve 100 Msps in Turbo Mode. During normal search mode MARIE performs 50 Msps at 144-bit lookup. A special shifted payload algorithm for the signature matching makes MARIE a perfect fit for IDS applications. Features - - - - - - - - - - - 1 M-bit full ternary CAM 100 Msps max. 144-bit LU/288-bit LU with Turbo Search 50 Msps max. 144-bit LU with Normal Search 25 Msps max. 288-bit LU with Normal Search Shifting payload for signature matching application. 36-bit DQ interface (reduced pin count interface) Priority encoder IEEE 1149.1 test port 2.5 V/1.5 V power supply SSTL-2 interface 1.7 × 1.7 mm, 1 mm pitch 256 PBGA Rev.1.00 Feb 21, 2005 page 1 of 8 R8A20110BG (MARIE) Block Diagram DQ[35:0] Header-0 Header-1 TDSR JTAG TDI TDO TMS TCK TRST OID_I Header select bined Search Data Shifted payload Offset Header Payload .. Search Mask Register OP_ENA OP[5:0] SR_F CLK, ZCLK Control Register Full Ternary CAM Array Priority Encoder RSTL TUE IND OID_O (TRF) Rev.1.00 Feb 21, 2005 page 2 of 8 R8A20110BG (MARIE) Functional Description 1. Denser and Low power CAM MARIE is a new Network Signature Matching Co-Processor ideal for IDS applications. The specially designed custom SRAM cell takes advantage of space and power increasing MARIE’s overall performance. 2. Half Sized Global Mask Search Register In a conventional TCAM the Global Mask Search Register consists of the same number of register bits as number of CAM bits. During a search mand the Global Mask Search Register controls the bits that participate in the search. In MARIE’s TCAM the Global Mask Search Register controls two CAM bits at the same time,...