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
- 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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