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DP5380 Datasheet(PDF) 30 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP5380
Description  Asynchronous SCSI Interface (ASI)
PDF  32 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP5380 Datasheet(HTML) 30 Page - National Semiconductor (TI)

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Appendix A2
Register Chart
READ
WRITE
Bit 7
Current SCSI Data (CSD)
Bit 0
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Bit 7
Output Data Register (ODR)
Bit 0
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Bit 7
Initiator Command Register (ICR)
Bit 0
RST
AIP
LA
ACK
BSY
SEL
ATN
DBUS
Bit 7
Initiator Command Register (ICR)
Bit 0
RST
TEST DIFF EN ACK
BSY
SEL
ATN DBUS
Bit 7
Mode Register 2 (MR2)
Bit 0
BLK
TARG PCHK PINT
EOP
BSY
DMA
ARB
Bit 7
Mode Register 2 (MR2)
Bit 0
BLK
TARG PCHK PINT
EOP
BSY
DMA
ARB
Bit 7
Target Command Register (TCR)
Bit 0
0000
REQ
MSG
CD
IO
Bit 7
Target Command Register (TCR)
Bit 0
xxxx
REQ
MSG
CD
IO
Bit 7
Current SCSI Bus Status (CSB)
Bit 0
RST
BSY
REQ
MSG
CD
IO
SEL
DBP
Bit 7
Select Enable Register (SER)
Bit 0
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Bit 7
Bus and Status Register (BSR)
Bit 0
EDMA DRQ SPER
INT
PHSM
BSY
ATN
ACK
Bit 7
Start DMA Send (SDS)
Bit 0
xxxxxxxx
Bit 7
Input Data Register (IDR)
Bit 0
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Bit 7
Start DMA Target Receive (SDT)
Bit 0
xxxxxxxx
Bit 7
Reset ParityInterrupt (RPI)Mode N
Bit 0
xxxxxxxx
Bit 7
Start DMA Initiator Receive (SDI)Mode N Bit 0
xxxxxxxx
X e Unknown
X e Don’t Care
30



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