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DP83266 Datasheet(PDF) 95 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83266
Description  MACSITM Device (FDDI Media Access Controller and System Interface)
PDF  152 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83266 Datasheet(HTML) 95 Page - National Semiconductor (TI)

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70 Control Information (Continued)
State Notify Register (STNR)
The State Notify Register (STNR) is used to enable bits in the State Attention Register (STAR) If a bit in the STNR is set to One
the corresponding bit in Register STAR will be applied to the Master Attention Register which can be used to generate an
interrupt to the host
All bits in this register are cleared to Zero upon reset
Access Rules
Address
Read
Write
107h
Always
Always
Register Bits
D7
D6
D5
D4
D3
D2
D1
D0
ERRN
BPEN
CPEN
CWIN
CMDEN
SPSTOPN
RQSTOPN
INSTOPN
Bit
Symbol
Description
D0
INSTOPN
Indicate Stop Notify
This bit is used to enable the INSTOP bit in Register STAR
D1
RQSTOPN
Indicate Stop Notify
This bit is used to enable the RQSTOP bit in Register STAR
D2
SPSTOPN
StatusSpace Stop Notify
This bit is used to enable the SPSTOP bit in Register STAR
D3
CMDEN
Command Error Notify
This bit is used to enable the CMDE bit in Register STAR
D4
CWIN
Conditional Write Inhibit Notify
This bit is always Zero CWI is always masked
D5
CPEN
Control Bus Parity Error Notify
This bit is used to enable the CPE bit in Register STAR
D6
BPEN
BMAC Device Parity Error Notify
This bit is used to enable the BPE bit in Register STAR
D7
ERRN
Error Notify
This bit is used to enable the ERR bit in Register STAR
95



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