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CV7311

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EP7311 Data Sheet FEATURES High-performance, Low-power, System-on-chip with SDRAM & Enhanced Digital Audio Interface ■ ARM720T Processor — ARM7TDMI CPU — 8 KB of four-way set-associative cache — MMU with 64-entry TLB — Thumb code support enabled ■ Ultra low power — 90 mW at 74 MHz typical — 30 mW at 18 MHz typical — 10 mW in the Idle State — <1 mW in the Standby State ■ 48 KB of on-chip SRAM ■ MaverickKey™ IDs OVERVIEW The Maverick™ EP7311 is designed for ultra-low-power applications such as PDAs, smart cellular phones, and industrial hand held information appliances. The core-logic functionality of the device is built around an ARM720T processor with 8 KB of four-way set-associative unified cache and a write buffer. Incorporated into the ARM720T is an enhanced memory management unit (MMU) which allows for support of sophisticated operating systems like Linux®. — 32-bit unique ID can be used for SDMI compliance — 128-bit random ID ■ Dynamically programmable clock speeds of 18, 36, 49, and 74 MHz (cont.) (cont.) BLOCK DIAGRAM EPB Bus Serial Interface Power Management (2) UARTs w/ IrDA Clocks & Timers ARM720T ICE-JTAG Interrupts, PWM & GPIO ARM7TDMI CPU Core 8 KB Cache Boot ROM Write Buffer Bus Bridge MMU Keypad& Touch Screen I/F Internal Data Bus Memory Controller TM MaverickKey SRAM I/F SDRAM I/F On-chip SRAM 48 KB USER INTERFACE SERIAL PORTS Multimedia Codec Port LCD Controller MEMORY AND STORAGE ©Copyright Cirrus Logic, Inc. 2005 http://www.cirrus.com (All Rights Reserved) AUG ‘05 DS506F1

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