LSI53C875 LSI Logic, LSI53C875 Datasheet - Page 19
LSI53C875
Manufacturer Part Number
LSI53C875
Description
PCI to Ultra SCSI I/O Processor
Manufacturer
LSI Logic
Datasheet
1.LSI53C875.pdf
(314 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LSI53C875-160QFP
Manufacturer:
LSI
Quantity:
20 000
Company:
Part Number:
LSI53C875J
Manufacturer:
NS
Quantity:
4 490
Part Number:
LSI53C875J
Manufacturer:
LSILOGIC
Quantity:
20 000
- Current page: 19 of 314
- Download datasheet (3Mb)
®
1.3 TolerANT
Technology
The LSI53C875 features TolerANT technology, which includes active
negation on the SCSI drivers and input signal filtering on the SCSI
receivers. Active negation actively drives the SCSI Request,
Acknowledge, Data, and Parity signals HIGH rather than allowing them
to be passively pulled up by terminators. Active negation is enabled by
setting bit 7 in the
SCSI Test Three (STEST3)
register.
TolerANT receiver technology improves data integrity in unreliable
cabling environments, where other devices would be subject to data
corruption. TolerANT receivers filter the SCSI bus signals to eliminate
unwanted transitions, without the long signal delay associated with
RC-type input filters. This improved driver and receiver technology helps
eliminate double clocking of data, the single biggest reliability issue with
SCSI operations. TolerANT technology input signal filtering is a built-in
feature of the LSI53C875 and all LSI Logic fast SCSI devices. On the
LSI53C875, the user may select a filtering period of 30 or 60 ns, with
bit 1 in the
SCSI Test Two (STEST2)
register.
The benefits of TolerANT technology include increased immunity to noise
when the signal is going HIGH, better performance due to balanced duty
cycles, and improved fast SCSI transfer rates. In addition, TolerANT
SCSI devices do not cause glitches on the SCSI bus at power-up or
power-down, so other devices on the bus are also protected from data
corruption. TolerANT technology is compatible with both the Alternative
One and Alternative Two termination schemes proposed by the
American National Standards Institute.
®
TolerANT
Technology
1-5
Related parts for LSI53C875
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
LR33000 Self-Embedding Processor
Manufacturer:
LSI [LSI Computer Systems]
Datasheet:
Part Number:
Description:
LSI for 16 CH Multiplexing
Manufacturer:
Mitsubishi
Datasheet:
Part Number:
Description:
DVD Recorder System Processor
Manufacturer:
LSI Logic
Datasheet:
Part Number:
Description:
DVD Recorder System Processor
Manufacturer:
LSI Logic
Datasheet:
Part Number:
Description:
Servo / Video Decoder and System Processor
Manufacturer:
LSI Logic
Datasheet:
Part Number:
Description:
Mpeg-2 Audio/video Decoder
Manufacturer:
LSI Logic Corporation
Datasheet:
Part Number:
Description:
Satellite Decoder Technical Manual 5/97
Manufacturer:
LSI Logic Corporation
Datasheet:
Part Number:
Description:
Satellite Receiver
Manufacturer:
LSI Logic Corporation
Datasheet: