LSI53C825AJ LSI, LSI53C825AJ Datasheet - Page 51
LSI53C825AJ
Manufacturer Part Number
LSI53C825AJ
Description
Manufacturer
LSI
Datasheet
1.LSI53C825AJ.pdf
(306 pages)
Specifications of LSI53C825AJ
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Figure 2.2
2.4.9 SCSI Bus Interface
SODL Register
Asynchronous
SCSI Interface
PCI Interface
(32 Bits x 16)
SCSI Send
DMA FIFO
LSI53C825A Host Interface Data Paths
The LSI53C825A supports both SE and differential operation.
All SCSI signals are active LOW. The LSI53C825A contains the SE
output drivers and can be connected directly to the SCSI bus. Each
output is isolated from the power supply to ensure that a powered-down
LSI53C825A has no effect on an active SCSI bus (CMOS “voltage
feed-through” phenomena). TolerANT technology provides signal filtering
at the inputs of SREQ/ and SACK/ to increase immunity to signal
reflections.
PCI Cache Mode
SIDL Register
Asynchronous
SCSI Receive
SCSI Interface
PCI Interface
(32 Bits x 16)
DMA FIFO
SWIDE Register
SODL Register
SODR Register
SCSI Interface
Synchronous
(32 Bits x 16)
PCI Interface
SCSI Send
DMA FIFO
(8 or 16 Bits x 16)
SCSI Receive
SCSI Interface
Synchronous
(32 Bits x 16)
PCI Interface
DMA FIFO
SCSI FIFO
SWIDE Register
2-27
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