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DP83266 Datasheet(PDF) 72 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) 72 Page - National Semiconductor (TI)

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70 Control Information (Continued)
Exception Mask Register (EMR)
The Exception Mask Register (EMR) is used to mask bits in the Exception Status Register (ESR) If a bit in Register EMR is set
to One the corresponding bit in Register ESR will be applied to the Condition Register which can then be used to generate an
interrupt
All bits in this register are set to Zero upon reset
Access Rules
Address
Read
Write
02Dh
Always
Always
Register Bits
D7
D6
D5
D4
D3
D2
D1
D0
ZERO
CCE
CPE
RES
RES
RES
RES
PPE
Bit
Symbol
Description
D7
ZERO
Zero
This bit is always Zero This implies that the CWI bit never contributes to the Interrupt Signal
D6
CCE
Control Bus Error Mask
This bit is used to mask ESRCCE
D5
CPE
Control Bus Parity Error Mask
This bit is used to mask ESRCPE
D4 – D1
RES
Reserved
D0
PPE
PHY Interface Parity Error Mask
This bit is used to mask ESRPPE
72



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