CL-CR3470/CR3475
ATAPI CD-R/RW Encoder/Decoder
FEATURES (cont.)
■ CD-ROM Decoder (cont.)
■ ATAPI Host Interface
— Supports programmable pseudo-sync-mark insertion for
CD-ROM sector synchronization
— True realtime hardware/software ATAPI compatibility
— Hardware implementation of ATAPI packet command
ATAPI reset command
— Supports automatic target sector header search for
CD-ROM
— Automated protocol control on block data transfer for
ATAPI read/write commands
— Supports CD-Text mode format
— Sector header validity check is done by hardware during
data transfer
— Supports Ultra ATA 33 data transfer protocol with data
rate up to 33.3 Mbytes/sec.
— Realtime CD-ROM layered ECC error correction with
programmable number of P- and Q-word corrections per
sector (up to 64 total)
— Supports any host speed with programmable and auto
wait-state generation
— Supports fast ATA transfer speed up to PIO mode 4,
single-word DMA mode 2, and multi-word DMA mode 2
— Supports realtime subcode R-W correction in CD-DA
mode
— Provision to daisy-chain two ATA or ATAPI embedded
drives
— Automated CD-R packet disc read Method-1 and
Method-2
■ Buffer Manager
■ ADB (Audio Data Buffer) and DAC Interface
— Supports 8-bit and 16-bit DRAM
— Supports CD-DA data buffering without slowing the
motor to 1x speed
— Dual-port circular buffer control with access-priority
resolver
— Supports streaming during disc-to-DAC data transfer
— Supports various DACs
— Direct addressing of up to 16 Mbytes of DRAM
— Supports variable buffer segmentation
■ CD-R/RW Encoder
— Supports streaming mode: hardware automation of con-
current host and disc transfers from different buffer
segments with a pacing mechanism to prevent buffer
overrun and underrun conditions
— Supports all write methods: disc-at-once, track-at-once,
packet recording, multi-session-at-once
— Fully compatible with Orange Book Version 2.9
specification
■ Microcontroller Interface
— Highly automated CD-R formatter eliminates the sector-
by-sector intervention by the microcontroller
— Supports high-speed Intel - and Motorola -type
microcontrollers
— Supports CD-RW logical erase
— Supports up to 10x recording
— Supports subcode R-W encode
— Integrated CIRC encoder
— Supports non-multiplexed and multiplexed address and
data buses
— Interrupt- or polled-microcontroller interface
— Supports Intel- and Motorola-type byte ordering for
word-wide microcontroller instructions
— SPI (Serial Parallel Interface) controls an optional
external CD-R engine (CL-CR3475 only)
— Hardware wait states provided by the LREADY signal
with programmable or automatic wait state timing
— Integrated EFM modulation circuitry
— Supports direct microcontroller access to buffer memory
— Integrated ATIP decoder with target ATIP search
function
■ SCSI Interface
— Supports data transfer to/from SCSI protocol devices,
such as Symbios Logic 53CF94/96-2 and 53CF92A
Fast SCSI controllers
— Provides timing for laser power on/off control
■ Integrated DVD Port
— 8-bit parallel interface to optional DVD data decoder
(CL-CR3475 only)
CIRRUS [ CIRRUS LOGIC ]
