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DP83261AVF Datasheet(PDF) 45 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83261AVF
Description  BMAC Device (FDDI Media Access Controller)
PDF  132 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83261AVF Datasheet(HTML) 45 Page - National Semiconductor (TI)

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60 Control Information (Continued)
Counter Overflow Mask Register (COMR)
The Counter Overflow Mask Register (COMR) is used to mask bits from the Counter Overflow Latch Register (COLR) If a bit in
Register COMR is set to One the corresponding bit in Register COLR will be applied to the Interrupt 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
1Dh
Always
Always
REGISTER BITS
D7
D6
D5
D4
D3
D2
D1
D0
RES
TKRCVD
FRTRX
FRNCOP
FRCOP
FRLST
FREI
FRRCV
Bit
Symbol
Description
D0
FRRCV
Frame Received Counter Overflow Mask
This bit is used to mask COLRFRRCV
D1
FREI
Error Isolated Counter Overflow Mask
This bit is used to mask COLRFREI
D2
FRLST
Lost Frame Counter Overflow Mask
This bit is used to mask COLRFRLST
D3
FRCOP
Frame Copied Counter Overflow Mask
This bit is used to mask COLRFRCOP
D4
FRNCOP
Frame Not Copied Counter Overflow Mask
This bit is used to mask COLRFRNCOP
D5
FRTRX
Frame Transmitted Counter Overflow Mask
This bit is used to mask COLRFRTRX
D6
TKRCVD
Token Received Counter Overflow Mask
This bit is used to mask COLRTKRCVD
D7
RES
Reserved
45



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