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EP7309-IB Datasheet(PDF) 2 Page - Cirrus Logic |
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EP7309-IB Datasheet(HTML) 2 Page - Cirrus Logic |
2 / 51 page 2 ©Copyright Cirrus Logic, Inc. 2005 (All Rights Reserved) DS507F1 EP7309 High-Performance, Low-Power System on Chip FEATURES (cont) ■ Dynamically programmable clock speeds of 18, 36, 49, and 74 MHz ■ 48 KB of on-chip SRAM ■ MaverickKey™ IDs — 32-bit unique ID can be used for SDMI compliance — 128-bit random ID ■ 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 — 8/32/16-bit SRAM/FLASH/ROM Interface — Digital Audio Interface providing glueless interface to low-power DACs, ADCs and CODECs — 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 EP7309 is optimized for low power dissipation and is fabricated on a 0.25 micron CMOS process OVERVIEW (cont.) The EP7309 is designed for ultra-low-power operation. Its core operates at only 2.5 V, while its I/O has an operation range of 2.5 V–3.3 V. The device has three basic power states: operating, idle and standby. MaverickKey unique hardware programmed IDs are a solution to the growing concern over secure web content and commerce. With Internet security playing an important role in the delivery of digital media such as books or music, traditional software methods are quickly becoming unreliable. The MaverickKey unique IDs provide OEMs with a method of utilizing specific hardware IDs such as those assigned for SDMI (Secure Digital Music Initiative) or any other authentication mechanism. The EP7309 integrates an interface to enable a direct connection to many low cost, low power, high quality audio converters. In particular, the DAI can directly interface with the Crystal‚ CS43L41/42/43 low-power audio DACs and the Crystal‚ CS53L32 low-power ADC. Some of these devices feature digital bass and treble boost, digital volume control and compressor-limiter functions. Simply by adding desired memory and peripherals to the highly integrated EP7309 completes a low-power system solution. All necessary interface logic is integrated on-chip. |
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