JL4220A Multimedia Controller
General Description
JL4220A is a highly integrated multimedia controller targeted for Digital Photo Frame with digital LCD panel. It is capable of
reading/playing the photo (JPEG), video (Motion JPEG), and audio (MP3/WMA) from memory cards and internal NAND Flash.
All of your favorite digital photos can be played back in slide show or in still display while MP3/WMA music is playing back.
There are various slide transition effect are added between each photo slide. All of above playback doesn’t need the use of
PC. It can read/write the files from/to different kinds of memory card such as USB Pen Drive, CF/Microdrive, SD/SDHC,
MMC/MMCplus, XD, and NAND Flash. Besides photo frame function, JL4220A can be used as USB Card Reader thru USB
Device port (MassStorage).
Features
Embedded 8-bit 8051 MCU

Hardware JPEG Codec

PCM / ADPCM Audio Decoder

MP3 / WMA Audio Decoder

Image Process: Gamma Correction,

Sharpness Adjustment
NOR Flash / NAND Flash Boot

Integrated RTC

In-system Programming

216-pin LQFP (24x24mm)

Card Reader Interface:
CF & Microdrive

SD/SDHC/MMC/MMCplus

XD

SLC/MLC NAND Flash

Display
Integrated TCON

Digital (RGB565/666/888) LCD Panel

Digital (Serial RGB) LCD Panel

Small-size LCD panel with CPU Interface

8-bit CCIR601/656 Output Interface

PWM for LED Backlight or Charge Pump

Playback:
Photo: JPEG, Progressive JPEG, BMP

Audio: MP3 with Lyrics, WMA

Video: Motion JPEG

Combo Playback: JPEG+MP3/WMA

Peripheral:
IR Remote Control, Buttons

SPI, I2S, I2C Interface

ADC for low battery detection

Basic Applications
Digital Photo Frame (DPF)

Viewing Photos (JPEG/BMP)
Viewing Movie (Motion JPEG)
Listening to MP3/WMA music
USB2.0 Card Reader

DPF with Clock/Calendar/Alarm

USB:
High-Speed USB 2.0 Host port

High-Speed USB 2.0 Device port

MassStorage Class

Functional Diagram
JL4220A
Image
Processor /
Scaler
Battery
16-bit SDRAM
12-bit ADC
SDRAM
Controller
JPEG Codec
Memory Card
Controller
RTC
IR Receiver
Serial
NOR Flash
GPIOs
IR
Decoder
Boot Loader
i-Cache
MPU
(Turbo 8051)
Buttons
JEILIN Technology Co., Ltd.
(2009/3/23)
NAND Flash
(SLC/MLC)
Bus Arbiter
USB 2.0 Host
Controller
ADPCM Decoder
USB 2.0 Device
Controller
MP3/WMA
Decoder
I2S Audio
Codec
Video Output
Interface
Digital LCD
Panel
PWM for LED
Backlight
I2S Interface
USB 2.0
Pen Drive
CF/Microdrive,
SD/MMC, XD
PC
8F, No. 179, Jian Yi Rd., Chung Ho
Taipei Hsien, Taiwan
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