LSI53C040-160QFP LSI, LSI53C040-160QFP Datasheet - Page 47
LSI53C040-160QFP
Manufacturer Part Number
LSI53C040-160QFP
Description
Manufacturer
LSI
Datasheet
1.LSI53C040-160QFP.pdf
(212 pages)
Specifications of LSI53C040-160QFP
Mounting
Surface Mount
Lead Free Status / RoHS Status
Supplier Unconfirmed
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2.10.1.2 Interrupt Mask Register (0xFE0D)
2.10.1.3 Interrupt Destination Register (0xFE0E)
2.10.2 DMA and SCSI Interrupts
2.10.2.1 End of DMA Transfer Interrupt
Clearing the bits in this register masks the interrupts corresponding to
the bits in the
This register provides the ability to route an interrupt to either of the two
external interrupt inputs of the microcontroller core. The bits correspond
to the interrupts in the
routes the interrupt to external interrupt 0, and setting the bit routes it to
external interrupt 1.
The SCSI core provides an interrupt output to indicate task completion
or an abnormal bus occurrence. The use of interrupts is optional and
may be disabled by resetting the appropriate bits in the
register (0xFC02) or the
When an interrupt occurs, the
Current SCSI Bus Status (CSBS)
which condition created the interrupt. The interrupt can be reset by
simply reading the
an external chip reset.
If the SCSI core has been properly initialized, an interrupt will be
generated in the following cases:
The End of DMA bit determines when a block data transfer is complete.
Receive operations are complete when there is no data left in the SCSI
core and no additional handshakes occur.
Interrupts
the chip is selected/reselected
a DMA transfer completes
a SCSI bus reset occurs
a parity error occurs during a data transfer
a bus phase mismatch occurs
a SCSI bus disconnection occurs
Interrupt Status (ISR)
Reset Parity/Interrupt (RPI)
Interrupt Status (ISR)
Select Enable (SER)
Bus and Status (BSR)
register must be read to determine
register.
register. Clearing the bit
register (0xFC04).
register (0xFC07) or by
register and the
Mode (MR)
2-29
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