note: this is a summary datasheet. a complete document is available under nda. for more information, please contact your local atmel sales office. features ? advanced processor for dual-mode digital still cameras and video recorders supports personal video recording applications arm946e-s ? core with enhanced dsp capability for a/v processing and system control functions, 8 kbytes each for instru ction/data cache, runs up to 96 mhz supports progressive and interlac ed ccd imagers (up to 4 fields) image processing functi ons for ccd/cmos imagers image scaling and rotation hardware video encoder with two dacs and line drivers for composite or s-video ntsc/pal tv digital video outputs include: composite, 16/8-bit yc (ccir-656 ), rgb 565, 24-bit rgb, component (y/pr/pb), vesa up to xg a resolutions direct interface to casio, epson, au, and toppoly lcds encodes/decodes images and vi deo: baseline jpeg, mpeg-1 at 24 fps vga, mpeg-4 at 30 fps vga (performance figures are for half-duplex) ddr sdram interface supports from 128 mbits to 1 gbit unified memory architecture (all prog ram and data stored in the ddr sdram) support for all flash card inte rfaces (mmc/sd, memory stick pro ? , ssfdc/smartmedia, compactflash ? ) ata/ide interface static memory interface (f lash/sram) supports up to eight 16 mb devices one dac for camera control functions and audio output four adc channels for monitoring camera an alog inputs, audio input, switch input audio data interface for connection to external stereo adc/dac usb 2.0 high-speed slave and full-speed host controllers for pc camera and printing applications ieee# 1394 link layer interface two usart interfaces and a se rial peripheral interface (spi) for loading boot code and controlling camera components six general-purpose timers for waveform generation (pwm, etc.) and event monitoring programmable watchdog timer and real-time clock keyboard interface supp orts up to 25 buttons up to 8 external interrupts and up to 130 pins configurable as general-purpose i/o 280-ball bga package, 1.8v core, and 1.8 to 3.3v i/o operation high- performance digital/video camera processor AT76C114 summary 5674bs?image?09/04
2 AT76C114 5674bs?image?09/04 figure 1. typical dsc application using the AT76C114 leds, misc. control pll filter ddr sdram subsystems ics legend to pc or slave peripherals audio codec serial eeprom (boot code) 12 mhz to pc imager and lens subsystem direct lcd panel subsystem tv filters program flash (optional) push- buttons battery, focus, audio shutter, lens,flash, audio ddr sdram controller 96 mhz, cl=2 imager interface interrupt controller system ? ? ? ? ? ? ? usb host/slave usarts (x2) adc timers 4kb i. ram audio data interface image processing core 8 kb i. cache d[31:0] arm946e-s 96 mhz 8 kb d. cache 2kb d. ram video codec vdac1 display interface vdac2 scaler ieee 1394 static memory controller flash card controller ide controller keyboard interface watchdog timer real-time clock dac flash cards hard drive link layer chip spi
3 AT76C114 5674bs?image?09/04 description the AT76C114 is a highly in tegrated solution for dual-mode digita l still-image and video cameras. it combines a number of functions that are required in such devices, including the following: the device is based on an arm946e-s microprocessor whose function is to control the entire system, to capture and play back audio, and to multiplex compressed video and audio into a single bitstream that can be delivered to the main cpu. most computationally-intensive functions are implemented in hardware which can be programmed according to user specifications, thus allowing the arm ? processor to be free for other user-defined functions such as advanced image and multimedia processing. the processor has 8 kb + 8 kb of internal instruction/data cache which helps it to operate efficiently and use minimal ddr sdram bandwidth. the device supports imager sizes of up to 16 megapixels. it accepts both bayer rgb and ccir-656 interfaces , which cover all possible ccd and cmos sensors. it supports progressive as well as interlaced (up to 4 fields) imagers, including the special readout modes of progressive vga ccd imagers. the device also supports a programmable delay on the external imager clock so that the highest quality images can be captured. the device has a high-performance still- image and video image processing block that performs all the necessary functions to convert the image/video data to a format that can be compressed in either jpeg or mpeg formats, as well as deliver image data to the lcd controller for live view. th is block performs gain control, color recovery, gamma correction, image enhancement, image correction, scaling, and conversion to yc format. all those functions have been implemented in hardware to achieve the required performance at very low power consumption figures. in addition, there is a hardware block that collects statistics on the imager for auto- exposure (ae) and auto-white balancing (awb) algorithms. those ae/awb algorithms are performed in the embedded arm9 cpu to allow customization of the application. the current architecture also has the appropriate interfaces as well as sufficient performance to support a strobe-type flash light, as well as dark frame subtraction for low-level light conditions. the device has numerous display capabilit ies. it has an inte grated video encoder (double sampling) and two 10-bit video dacs running at up to 27 mhz to support direct display to high-definition tvs and projectors. the device also has a 24-bit rgb output to interface to flat-panel tvs (lcds and plasma) at different vesa rates up to xga (1024 x 768) resolution. it supports both square pixel and ccir- type formats and can display in ntsc or pal modes with the same crystal. it also has an integrated lcd controller which can interface directly to various lcds. it directly supports a variety of lcd panels from epson, casio, au, and toppoly without the need for external ics. finally, it has a digital video output interface which can supply composite, 8-bit yc (ccir-656), 16-bit yc, rgb 565, or component (y/pr/pb) formats. the device has a high-performance image scaler that can do up and down scaling at floating point resolutions. in addition, the device supports hardware rotation, as well as flipping and mirroring in both vertical and horizontal dimensions. it takes approximately 120 ms to rotate a 2m image (1600 pixels) in any direction. for video applications, a hardware video codec is included that supports mpeg-4 simple profile (encode and decode) and advanced simple profile (encode only) communication at up to 30 fps vga resolution. the hardware video engine is a pipelined architecture which is also flexible enough to support jpeg compression/decompression, h.263, mpeg-2 encode(i/p frames) at 30 fps vga, and mpeg-1 encode/decode at 24 fps vga (i frames only). the video codec can also be used to record and play back video clips including those taken from other
4 AT76C114 5674bs?image?09/04 digital cameras and mobile phones. all performance figures are for half-duplex operation. full duplex is possible, but the performance has not been characterized. the device utilizes a unified memory architecture using the ddr-sdram to capture, process, and play back images and video as well as to store program code and variables. it supports sdram configurations of up to 1 gigabit. the device supports all flash cards, in cluding multimedia ca rd (mmc), secure digital (sd), memory stick pro, ssfdc/smartmedia/nand flash, and compactflash. the flash card interfaces ca n support read/write operations at the maximum speeds specified by the flash cards. the device has an ata/ide controller with udma capability to stre am video directly to hard drives or compactflash devices. a static memory controller is included that supports up to eight 16 mb devices such as flash, sram, or other memory-mapped peripherals. both 8-bit and16-bit data buses are supported, with data accesses of up to 32 bits. the number of wait states, and setup, hold, and data float times are programmable on a per device (chip select) basis. a general-purpose 10-bit, 96 khz dac is available. it can be used to control camera components such as the iris, shutter motor, lens motor, flash bulb, or agc gain. it can also be used to drive audio output. a general-purpose 10-bit, 96 khz adc is available. this adc has four input channels, which can be used for such things as battery level checking, photo detection, focus sensing, or audio capture. the i 2 s- and ac ?97-compatible audio data interface allows the device to connect with an external stereo adc/dac to capture or play back voice or audio. the device can encode captured audio in various popular formats, and can package it in the same bitstream as the video or inside co mpressed jpeg pictures. it can also play back stand-alone audio such as mp3 files, or audio embedded in mpeg bitstreams. the usb 2.0 high-speed slave controller can be used to connect to a pc for efficient downloading of captured images to the pc. the usb 2.0 full-speed host controller allows the device to connect directly to printers and other slave devices. an ieee 1394 link layer interfac e allows the device to st ream video (c ompressed or uncompressed) to other devices. two usart interfaces are included for serial communication. they support standard baud rates of up to 460.8 kbps or non-standard rates of up to 4.875 mbps in asynchronous mode. they support rates of up to19.5 mbps in synchronous mode. the serial peripheral interf ace (spi) is used to boot from an external eeprom. once the boot code is loaded inside the program memory, the cpu can download its code from any peripheral supported by the device, including non-volatile storage media. with four chip select pins, the spi can also be used to control other external devices at speeds of up to 24 mbps. three 16-bit and three 32-bit general purpose timers are included which can be used to generate interrupts to the internal cpu. the 16-bit timers can also generate waveforms on their associated pins via pulse-width modulation (pwm) or other techniques. they can also monitor and count external events on these pins. a dedicated watchdog timer is available which can provide an interrupt, an event on an external pin, or a reset to the internal cpu in the event that software is not responding as expected. write access to the watchdog is protected by control access keys to prevent corruption of the watchdog should an error condition occur.
5 AT76C114 5674bs?image?09/04 a real-time clock is provided to keep track of the time. it operates on its own power supply, so the clock can keep running with very low power consumption even if the rest of the chip is unpowered. two pi ns are provided to control system power switching. the device provides a keyboard interface that can monitor up to 25 buttons. the device provides up to 8 external interrupt pins, depending on the system configuration, which can be handled by the interrupt controller as either edge or level sensitive. up to 130 pins can also be configured as gpios, depending on the system application. during normal operation, the power consumption may be minimized by disabling the clock of any internal module that is not in use. in order to further reduce power consumption, the main cpu clock can be divided to run at a slower speed. in order to minimize power consumption when the de vice is not in use, a ?sleep mode? is available that halts the operation of all logic and shuts down the oscillators and plls. recovery from sleep mode occurs via the wkp (?wakeup?) pin, at which time the device begins execution from its previous state. technology the device is fabricated in a 0.18 micron process. it is expecte d that the device will operate at less than 70 ma when fully active (video compression/decompression). the core logic requires a 1.8v power supply. most i/o pads require 3.3v supplies, a few interfaces use 1.8v s upplies, and the ddr interface requires a 2.5v supply. the package is a 280-ball bga.
printed on recycled paper. 5674bs?image?09/04 printed on recycled paper. disclaimer: atmel corporation makes no warranty for the use of its products , other than those expressly contained in the company?s standar d warranty which is detailed in atmel?s terms and conditions locat ed on the company?s web site. the company assumes no responsibi lity for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time wi thout notice, and does not make any commitment to update the information contained her ein. no licenses to patents or other intellectual property of atmel are granted by the company in connection with the sale of atmel produc ts, expressly or by implication. atmel?s products are not aut horized for use as critical components in life support devices or systems. atmel corporation atmel operations 2325 orchard parkway san jose, ca 95131, usa tel: 1(408) 441-0311 fax: 1(408) 487-2600 regional headquarters europe atmel sarl route des arsenaux 41 case postale 80 ch-1705 fribourg switzerland tel: (41) 26-426-5555 fax: (41) 26-426-5500 asia room 1219 chinachem golden plaza 77 mody road tsimshatsui east kowloon hong kong tel: (852) 2721-9778 fax: (852) 2722-1369 japan 9f, tonetsu shinkawa bldg. 1-24-8 shinkawa chuo-ku, tokyo 104-0033 japan tel: (81) 3-3523-3551 fax: (81) 3-3523-7581 memory 2325 orchard parkway san jose, ca 95131, usa tel: 1(408) 441-0311 fax: 1(408) 436-4314 microcontrollers 2325 orchard parkway san jose, ca 95131, usa tel: 1(408) 441-0311 fax: 1(408) 436-4314 la chantrerie bp 70602 44306 nantes cedex 3, france tel: (33) 2-40-18-18-18 fax: (33) 2-40-18-19-60 asic/assp/smart cards zone industrielle 13106 rousset cedex, france tel: (33) 4-42-53-60-00 fax: (33) 4-42-53-60-01 1150 east cheyenne mtn. blvd. colorado springs, co 80906, usa tel: 1(719) 576-3300 fax: 1(719) 540-1759 scottish enterprise technology park maxwell building east kilbride g75 0qr, scotland tel: (44) 1355-803-000 fax: (44) 1355-242-743 rf/automotive theresienstrasse 2 postfach 3535 74025 heilbronn, germany tel: (49) 71-31-67-0 fax: (49) 71-31-67-2340 1150 east cheyenne mtn. blvd. colorado springs, co 80906, usa tel: 1(719) 576-3300 fax: 1(719) 540-1759 biometrics/imagin g/hi-rel mpu/ high speed converters/rf datacom avenue de rochepleine bp 123 38521 saint-egreve cedex, france tel: (33) 4-76-58-30-00 fax: (33) 4-76-58-34-80 literature requests www.atmel.com/literature atmel corporation 2004 . all rights reserved. atmel ? and combinations thereof are the registered trademarks of atmel corporation. arm ? is a registered trademark and arm946e-s ? is the trademark of arm ltd. memory stick pro ? is the trademark of sony electronics inc. compact- flash ? is the registered trademark of sandisk corporation. other terms and product names may be the trademarks of others.
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