LSI53CF92A LSI, LSI53CF92A Datasheet - Page 16

• Manufacturer Part Number: LSI53CF92A
• Manufacturer: LSI

Specifications of LSI53CF92A

• Lead Free Status / RoHS Status: Not Compliant

1.2 SCSI-Configured AutoMatically (SCAM) Capability
1.3 TolerANT
1-2
The LSI53CF92A differs from other members of the 53Cx9x family in that
SCAM capability has been incorporated into the device. SCAM requires
the ability to manipulate the SCSI control and data lines individually. To
provide this capability, a low-level SCSI programming mode has been
added along with hardware assist for some SCAM operations. The
LSI53CF92A now contains an additional register addressing mode,
permitting access to two register banks, one for normal operation and
one for SCAM operation. Refer to
page
The FSC features TolerANT technology, which includes active negation
on the SCSI drivers and input signal filtering on the SCSI receivers.
Active negation causes the SCSI REQ/, ACK/, Data, and Parity signals
to be actively deasserted.
TolerANT receiver technology improves data integrity in unreliable
cabling environments, where other devices would be subject to data
corruption. TolerANT technology receivers filter the SCSI bus signal
to eliminate unwanted transitions without the long signal delay
associated with RC-type input filters. This improved driver and receiver
technology helps to eliminate the double clocking of data, which is the
single biggest data reliability issue with SCSI operations. The benefits of
TolerANT technology include increased immunity to noise when the
signal is going HIGH, increased performance due to balanced duty
cycles, and improved Fast SCSI transfer rates. TolerANT technology is
compatible with both the Alternative One and Alternative Two termination
schemes proposed by the ANSI.
Introduction
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Technology
2-17, for more information.
Section 2.8, “SCAM Capabilities,”
on