DVD PRML
Channel and
System
Controller SoC
AT78C4050
Summary
3507BS–NETST–6/05
Features
• Integrates All Required Components for Complete ATAPI DVD/CD Writer Solution
– Data Channel
– Servo Control Processor
– DVD ECC ENDEC
– CD CIRC C3 ENDEC
– Buffer Management
– EFM EFM+ 1.7 PP ENDEC
– ATAPI Interface
Formats Supported
–DVD-ROM
–DVD-R
–DVD-RW
–DVD+R
–DVD+RW
– Blue Laser DVD
– CD-ROM Mode 1
– CD-ROM Mode 2
– CD-ROM XA Mode 2 Form 1
– CD-ROM XA Mode 2 Form 2
– CD-DA
– CD-R
– CD-RW
Read/Write Speeds Supported
–DVD-ROM 16x
–DVD+R 16x
–DVD+RW 8x
–DVD-R 16x
–DVD-RW 8x
– Blue Laser DVD 8x
– CD-R 52x
– CD-RW 48x
– CD-ROM 52x
Pick-up Head Interface
– Auto Laser Power Control (ALPC) Circuit
– Supports Alpha (ROPC) Loop and OPC
– Programmable Serial Interface to OPU for Write Strategy Control
– Supports OPU Current Type and Voltage Type
– TWI interface to Access the EEPROM Serial Number
Host Interface
– ATAPI Compatible ATA-6 Host Mode
– Ultra DMA Support (100 MB/s)
– Direct Interface to ATAPI Bus
Processor
– ARM946E-S
™
RISC Processor
– Internal SRAM for Data
– Parallel External 16-bit Width Flash for Code, 512 Kbyte (max)
Note: This is a summary document. A complete document
is available under NDA. For more information, please con-
tact your local Atmel sales office.