EP7312-IV-C Datasheet PDF - Cirrus Logic

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®.

FEATURES
■ 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
   — 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
■ LCD controller
   — Interfaces directly to a single-scan panel
      monochrome STN LCD
   — Interfaces to a single-scan panel color STN LCD
      with minimal external glue logic
■ Full JTAG boundary scan and Embedded ICE
   support
■ Integrated Peripheral Interfaces
   — 32-bit SDRAM Interface up to 2 external banks
   — 8/32/16-bit SRAM/FLASH/ROM Interface
   — Multimedia Codec Port
   — Two Synchronous Serial Interfaces (SSI1, SSI2)
   — CODEC Sound Interface
   — 8×8 Keypad Scanner
   — 27 General Purpose Input/Output pins
   — Dedicated LED flasher pin from the RTC
■ Internal Peripherals
   — Two 16550 compatible UARTs
   — IrDA Interface
   — Two PWM Interfaces
   — Real-time Clock
   — Two general purpose 16-bit timers
   — Interrupt Controller
   — Boot ROM
■ Package
   — 208-Pin LQFP
   — 256-Ball PBGA
   — 204-Ball TFBGA
■ The fully static EP7311 is optimized for low power
   dissipation and is fabricated on a 0.25 micron CMOS
   process
■ Development Kits
   — EDB7312: Development Kit with color STN LCD
      on board.
   — EDB7312-LW: EDB7312 with Lynuxworks’
      BlueCat Linux Tools and software for Windows
      host (free 30 day BlueCat support from
      Lynuxworks).
   — EDB7312-LL: EDB7312 with Lynuxworks’ BlueCat
      Linux Tools and software for Linux host (free 30
      day BlueCat support from Lynuxworks).