FAS216 Datasheet, PDF (1/8 Pages) List of Unclassifed Manufacturers – Fast Architecture SCSI Processor

QLogic Corporation
FAS216/216U/236/236U
Fast Architecture SCSI Processor
Data Sheet
Features
s Host application and 16-bit peripheral application
support
s Compliance with ANSI SCSI standard
X3.131-1994
s Compliance with ANSI SCSI configured
automatically (SCAM) protocol levels 1 and 2
s Compliance with ANSI X3T10/855D SCSI-3
parallel interface (SPI) standard
s Compliance with ANSI X3T10/1071D Fast-20
standard
s Asynchronous data transfers up to 7 Mbytes/sec
s Synchronous data transfers up to 5 Mbytes/sec
(normal SCSI), 10 Mbytes/sec (fast SCSI), and 20
Mbytes/sec (Ultra SCSI)
Ì Programmable synchronous transfer period
Ì Programmable synchronous transfer offsets up
to 15 bytes
s 24-bit transfer counter
s Initiator and target modes
s Differential driver protection (DIFFSENS)
s Direct memory access (DMA) burst transfer rate up
to 20 Mbytes/sec
s Pipelined command structure
s 16-byte data FIFO between DMA and SCSI
channels
s Parity pass-through on FIFO data
s Part-unique ID code
s On-chip, single-ended SCSI transceivers
(48-mA drivers)
s Clock rates up to 40 MHz
DB BUS
FIFO
SCSI
DATA
PAD BUS
COMMAND
TRANSFER
COUNT
SEL/RESEL
BUS ID
SEL/RESEL
TIMEOUT
SYNC PERIOD
SYNC OFFSET/
SYNC ASSERT/
SYNC DEASSERT
CLOCK
CONVERSION
CONFIGURATION
TEST (SCAM)
SEQUENCERS
TRANSFER
COUNTER
INTERRUPT
STATUS
SEQUENCE
STEP
SCSI
CONTROL
NOTE:
SCAM APPLIES TO THE FAS216U AND FAS236U ONLY.
Figure 1. FAS2x6 Block Diagram
53236-580-00 C
FAS216/216U/236/236U
1