LSI53C040-160QFP LSI, LSI53C040-160QFP Datasheet - Page 90

• Manufacturer Part Number: LSI53C040-160QFP
• Manufacturer: LSI

Specifications of LSI53C040-160QFP

• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Supplier Unconfirmed

4-16
Register: 0xFC12
DMA Source/Destination Low (DSDL)
Read/Write
DSDL
Register: 0xFC13
DMA Source/Destination High (DSDH)
Read/Write
DSDH
SCSI and DMA Registers
7
0
7
0
0
0
DMA Source/Destination Low
These register bits store the least significant byte of the
DMA function’s source address for send transfers and
destination address for receive transfers. The read value
of the DSDL and
registers tracks the current source/destination address of
the transfer. If the transfer is interrupted for any reason,
the DSDL and DSDH registers will hold the next address
required, in case the interrupted transfer resumes.
DMA Source/Destination High
These register bits store the most significant byte of the
DMA function’s source address for send transfers and
destination address for receive transfers. The read value
of the
registers tracks the current source/destination address of
the transfer. If the transfer is interrupted for any reason,
the DSDL and DSDH registers hold the next address
required, in case the interrupted transfer resumes.
0
0
DMA Source/Destination Low (DSDL)
0
0
DMA Source/Destination High (DSDH)
DSDH
DSDL
0
0
0
0
0
0
and DSDH
0
0
0
0
[7:0]
[7:0]