LSI53C875 LSI Logic, LSI53C875 Datasheet - Page 208
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: 208 of 314
- Download datasheet (3Mb)
6.2.2 Second Dword
6.3 I/O Instruction
6.3.1 First Dword
6-12
IT[1:0]
OPC[2:0]
Instruction Set of the I/O Processor
Note:
Opcode selections 101–111 are considered Read/Write
instructions and are described in
Instructions.”
bytes transferred. In addition, the
(DNAD)
transferred. This process is repeated until the DBC
register has been decremented to zero. At that time, the
LSI53C875 fetches the next instruction.
If bit 28 is set, indicating table indirect addressing, this
field is not used. The byte count is instead fetched from
a table pointed to by the
register.
Start Address
This 32-bit field specifies the starting address of the data
to move to/from memory. This field is copied to the
Next Address (DNAD)
transfers data to or from memory, the DNAD register is
incremented by the number of bytes transferred.
When bit 29 is set, indicating indirect addressing, this
address is a pointer to an address in memory that points
to the data location. When bit 28 is set, indicating table
indirect addressing, the value in this field is an offset into
a table pointed to by the
The table entry contains byte count and address
information.
Instruction Type - I/O Instruction
Opcode
The following Opcode bit configurations have different
meanings, depending on whether the LSI53C875 is
operating in initiator or target mode.
register is incremented by the number of bytes
register. When the LSI53C875
Data Structure Address
Data Structure Address (DSA)
Section 6.4, “Read/Write
DMA Next Address
(DSA).
[31:30]
[29:27]
[31:0]
DMA
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: