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DP83266 датащи(PDF) 97 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
номер детали DP83266
подробное описание детали  MACSITM Device (FDDI Media Access Controller and System Interface)
PDF  152 Pages
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производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83266 датащи(HTML) 97 Page - National Semiconductor (TI)

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70 Control Information (Continued)
Service Notify Register (SNR)
The Service Notify Register (SNR) is used to enable attentions in the Service Attention Register (SAR) If a bit in Register SNR is
set to One the corresponding bit in Register SAR will be applied to the Master Attention Register which can be used to
generate a interrupt to the host
All bits in this register are set to Zero upon reset
Access Rules
Address
Read
Write
109h
Always
Always
Register Bits
D7
D6
D5
D4
D3
D2
D1
D0
RES
RES
RES
RES
ABRON
ABR1N
LMOPN
PTOPN
Bit
Symbol
Description
D0
PTOPN
Pointer RAM Operation Notify
This bit is used to enable the PTOP bit in Register SAR
D1
LMOPN
Limit RAM Operation Notify
This bit is used to enable the LMOP bit in Register SAR
D2
ABR1N
Abort Request RCHN1 Notify
This bit is used to enable the ABR1 bit in Register SAR
D3
ABR0N
Abort Request RCHN0 Notify
This bit is used to enable the ABR0 bit in Register SAR
D4 – D7
RES
Reserved
97



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