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DP83261AVF Fiches technique(PDF) 63 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce DP83261AVF
Description  BMAC Device (FDDI Media Access Controller)
PDF  132 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83261AVF Fiches technique(HTML) 63 Page - National Semiconductor (TI)

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60 Control Information (Continued)
Error Isolated Counter (EICT)
The Error Isolated Counter (EICT) is specified in the FDDI MAC Standard It is the count of all error frames detected by this
station and no previous station
It is incremented when
1) an FCS error is detected and the received Error Indicator (Er) is not equal to S or
2) a frame of invalid length (ie off-boundary T) is received and Er is not equal to S or
3) Er is not R or S
Interrupts are available on increment (CILRFREI) and when the 20-bit counter overflows and wraps around (COLRFREI)
ACCESS RULES
Address
Read
Write
A4 – A7h
Always
Stop Mode
D7
D6
D5
D4
D3
D2
D1
D0
EICT0
Zero
Zero
Zero
Zero
Zero
Zero
Zero
Zero
EICT1
Zero
Zero
Zero
Zero
CT(19)
CT(18)
CT(17)
CT(16)
EICT2
CT(15)
CT(14)
CT(13)
CT(12)
CT(11)
CT(10)
CT(9)
CT(8)
EICT3
CT(7)
CT(6)
CT(5)
CT(4)
CT(3)
CT(2)
CT(1)
CT(0)
63



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