
AIC-33C94 F
EATURES
S
UMMARY
Adaptec, Inc.
691 South Milpitas Boulevard
Milpitas, California 95035
Tel: (408) 945-8600
Fax: (408) 262-2533
Adaptec Europe - Belgium
Tel: (32) 2-352-34-11
Fax: (32) 2-352-34-00
Adaptec Japan - Tokyo
Tel: (81) 3-5365-6700
Fax: (81) 3-5365-6950
Adaptec Singapore
Tel: (65) 278-7300
Fax: (65) 273-0163
Literature:
1-800-934-2766 (USA and Canada)
or (510) 732-3829
Pre-Sales Support:
1-800-442-7274 (USA and Canada)
or (408) 957-7274
World Wide Web:
http://wwwadaptec.com
Internet ftp server:
ftp.adaptec.com
Adaptec USA Bulletin Board
Service (BBS):
(408) 945-7727
(up to 28,800 baud, using 8 bits,
1 stop bit, no parity)
Interactive Fax:
(303) 684-3400
Copyright 1998 Adaptec, Inc.All rights reserved.Adaptec,
the Adaptec logo, and AIC are trademarks of Adaptec, Inc.,
which may be registered in some jurisdictions.All other
trademarks used are owned by their respective owners.
Information supplied by Adaptec, Inc. is believed to be
accurate and reliable at the time of printing, but Adaptec,
Inc. assumes no responsibility for any errors that may
appear in this document.Adaptec, Inc. reserves the
right, without notice, to make changes in product design
or specifications. Information is subject to change
without notice.
P/N 980289-021
Printed in U.S.A.
3/98
R
AIC-33C94 ESBC Technical Information
Features:
Automatic response to a bus-initiated selection/reselection
16-word FIFO to support synchronous offset up to 32 bytes
Programmable synchronous transfer period
Pipelined 24-bit transfer counter
Transfers that can be specified in bytes or logical blocks
Microprocessor that also accesses the internal registers
through the DMA bus
All the signals needed for users to interface 8-bit differential bus
Power-down mode if not active
Applications:
Tape drives
CD-ROMs
Printers
Scanners
Copiers
DVDs
Analyzers
Voice mail
Instrumentation
Packaging:
100-pin MQFP
Design Support Tools:
Demo94 Board
WCS assembler and sample codes
SCAM sample codes
Sample schematics
Application Notes
Task
File
Dual
Port
Regs.
32 x 9
Writable
Control
Store
128 x 30
SCSI
Protocol
Control
ID
BIDIR
Buffer
BIDIR
Buffer
BIDIR
Buffer
SCSI
Control Sig.
SD (7-0), SDP
Micro.
Interface
RE
WE
CS
ALE
M
AD
(7-0)
DMA
Control
Logic
DWE
D
DRE
DREQ
DACK
BD (15-0)
BDPL, BDPH
16 x 18 FIFO
AIC-33C94 Enhanced SCSIBus Controller Architecture