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| PRODUCT INFORMATION CEA 3207A May/2005 CEA 3207A ARM7-Based Car Entertainment Controller The CEA 3207A is a device of Micronas' 32-bit Car Entertainment Controller family based on an ARM7TDMI CPU core. Like the already available CDC 3207G, the CEA 3207A is part of the LEAP family concept (Low Emission Automotive Processor). The microcontroller with its ARM7TDMI RISC CPU core allows two states of operation: ARM state with 32-bit instructions and THUMB state with 16-bit instructions. It is suited for entertainment-related applications like car radio or navigation systems. The current version CEA 3207A offers 32 kBytes of SRAM, 512 kBytes of Flash, and 8 kBytes of boot ROM. Communication is possible via two FullCAN modules, two I2C modules and two UART or SPI modules each. Due to its scalable architecture, further derivatives can be obtained within short lead time. An upgrade version with 1 MByte Flash and up to 64 kBytes RAM, as well as a downgrade version with 256 kBytes Flash and 16 kBytes RAM in the same package is planned. All devices have the patented built-in ERM (EMI Reduction Module) and are operated on a single 5-V power supply. Features 512 kBytes Flash ROM 32 kBytes SRAM 8 kBytes boot ROM Four CPU operation modes (Deep Slow, Slow, Fast, PLL) PLL circuitry delivering up to 50 MHz 4- to 5-MHz oscillator EMI reduction module (ERM) Digital watchdog Central clock divider Interrupt controller with 40 inputs and 16 priority levels Six port interrupts Regulator input supervision for reset/ alarm Clock and supply supervision 16-channel 10-bit ADC Two comparators ADC reference (1 internal, 3 external) 48 x 4 LCD module (optional) Three DMA channels Two UARTs, two SPIs Two CAN modules with 512 Bytes each of object RAM according to Bosch specification V2.0B (32 message objects) Two I2C master modules Six PWM modules (configurable as 2 x8 bit or 1x16 bit) Pulse frequency modulator Sound generator with auto decay Two SW-selectable clock outputs 16-bit free-running counter with six capture/compare modules 1 x16 bit timer and 4x8 bit timer JTAG interface -40 to +105 C case temperature range Single 3.5 V to 5.5 V supply voltage (limited I/O performance below 4.5 V) Up to 102 GPIOs 128-pin PQFP package with 0.5 mm pin pitch PRODUCT INFORMATION CEA 3207A Application The CEA 3207A targets infotainment applications with a need for high performance. It serves as controller, as well as interface to signal processing units. Due to its scalable architecture, the CEA 3207A can be upgraded with more memory, CAN controller, DSP, and graphical functions. The application can also be upgraded towards multistandard decoding capabilities (MP3, AAC, WMA) using Micronas' MAS 35xx family devices. 6261-102-1x May/2005 Tuner DSP I2C I2S DAC 3550A CD-ROM A 123 4 71 2 4 36 , 564 7/ CEA 32xxA ARM7 Fig. 1: Example application: CD-ROM-based car radio K7 Subwoofer Display System Architecture The Car Entertainment Controller CEA 3207A contains an embedded ARM7TDMI processor which operates at a maximum clock frequency of 50 MHz. Internally, this device works with different supply voltages: 2.5 V for the core and 3.3 V for the Flash memory. The system is scalable in terms of Flash memory, RAM, CAN, and the number of peripherals and can be expanded up to 1 MByte of Flash memory. The built-in ERM delivers superb EMI results reducing the peak values by up to 10 dBV. VREFINT VREF AVDD AVSS BVDD UVDD UVSS FVDD FVSS VDD VSS Reset Test Watchdog Clock PLL/ERM JTAG Interface Test / Debug 3.3-V Reg. 2.5-V Reg. ARM7TDMI CPU 2.5-V Reg. Wait Comp 40-Input Interrupt Controller 32 kB SRAM DMA Contr. Bus Controller PPorts P0.6 Comp Bandgap Ref. 16 Bridge 512 kB Flash 8 kB Boot ROM 10-Bit ADC Bridge UARTS 2 x UART HPorts UARTS LCD Control (optional) UARTS 16-Bit CCC 0 UARTS CAPCOM 0,1,2,3 UARTS 16-Bit CCC 1 UARTS 5 CAPCOM 4, UART S 1 x 16-Bit Timer UA Timer 4 x 8-Bit UART PWM 6 x 8/16-Bit S UPorts 32 UARTS 2 x SPI UARTS 2 x CAN UARTS 2 x IC Bus UARTS Audio Module UARTS Clock Out 0,1 (EMI Reduction Module) 52 ERM UARTS Fig. 2: Block diagram of the CEA 3207A All information and data contained in this product information are without any commitment, are not to be considered as an offer for conclusion of a contract, nor shall they be construed as to create any liability. Product or development sample availability and delivery are exclusively subject to our respective order confirmation form. By this publication, Micronas GmbH does not assume responsibility for patent infringements or other rights of third parties which may result from its use. No part of this publication may be reproduced, photocopied, stored on a retrieval system, or transmitted without the express written consent of Micronas GmbH. Edition May 18, 2005; Order No. 6251-600-2PI Micronas GmbH Hans-Bunte-Strasse 19 D-79108 Freiburg (Germany) P.O. Box 840 D-79008 Freiburg (Germany) Tel. +49-761-517-0 Fax +49-761-517-2174 E-mail: docservice@micronas.com www.micronas.com |
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