CS8818
General Purpose USB2.0-to-ATAPI Bridge Controller with
Embedded PHY
yson Century, Inc.
Taiwan:
No. 2, Industry East Rd. III,
Science-Based Industrial Park, Hsin-Chu, Taiwan
Tel: 886-3-5784866 Fax: 886-3-5784349
USA:
4020 Moorpark Avenue, Suite 115
San Jose, CA, 95117
Tel: 408-243-8388 Fax: 408-243-3188
M
FEATURES
Fully compatible with USB specification 2.0
- Support full-speed (12M bits/sec) or
high-speed (480M bits/sec) devices with
multiple configurations and multiple interfaces
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Support all USB standard commands,
including suspend and resume detection logic
- Support USB 2.0 TEST mode features
Supports 5 endpoints
- All endpoints share one on-chip 4K bytes SRAM
buffer and the size of each endpoint is
configurable
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Default control endpoints (EP0) with up to
64-byte buffer on either TX or RX direction
An interrupt OUT endpoint (EP1) and an
interrupt IN endpoint (EP2)
A bulk OUT endpoint (EP3) and a bulk IN
endpoint (EP4): up to 512 bytes data payload for
full/high speed bulk endpoint
Unused endpoint can be disabled
Embedded USB 2.0 transceiver
Integrated bit stuffing/unstuffing and stuff
error detection
NRZI (Non-Return-to-Zero Inverted)
encoding/decoding
USB Mass Storage Class Bulk-Only
Specification Compliant (Version 1.0)
Support Bus Powered and Self Powered modes
Support multiple LUNs
Automatic detection of Master or Slave ATAPI
devices
Support true ATAPI compatible interface
Complies with ATAPI-7 Specification (PIO
mode 0,3,4, Multiword DMA mode 0~2,
UDMA mode 0~6)
8-bit/16-bit Standard PIO mode interface
16-bit Multiword DMA mode and UDMA mode
interface (Ultra 133)
ATAPI bus can be shared with other devices
Embedded 8-bit microprocessor with on-chip 8K
x 14 program ROM and optional external 16K x
14 program ROM/Flash memory
Flexible 32-bit I/O interfaces providing maximum
versatility with ROM mask changeable firmware
Firmware to support ATAPI
CD-ROM/CD-RW/DVD-ROM/DVD-RW is
provided
12MHz external clock input to provide better
EMI
Low power with operation voltage 3.3V with 5V
tolerance I/O pads
Available in 64-pin LQFP (10mm x 10mm)
production package and 128-pin QFP (14mm x
20mm) development package
GENERAL DESCRIPTION
The CS8818 is a single chip USB (Universal Serial Bus)
2.0 Mass storage class peripheral controller intended for
use with standard ATAPI devices. The device consists of
a USB 2.0 PHY and SIE, FIFO buffers, embedded
microprocessor with expanded external program
ROM/Flash memory, and ATAPI compatible interface.
The CS8818 uses 12MHz crystal to reduce the EMI
issue. With flexible 32-bit I/O interface, the CS8818
can be programmed to fit different situations in the
USB 2.0 high speed mass storage class applications
such as CD-ROM, CD-RW, DVD-R and DVD-RW, etc.
sales@myson.com.tw
www.myson.com.tw
Rev. 1.0 April 2003
page 1 of 41
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