DP83261AVF datasheet(65/132 Pages) NSC

65 / 132 page

60 Control Information (Continued)

Frame Copied Counter (FCCT)

The Frame Copied Counter (FCCT) maintains the count of the number of frames successfully copied by this station This

counter can be used to accumulate station performance statistics

The Frame Copied Counter is incremented when an internal or external match occurs on the Destination Address no errors

were detected in the frame and the frame was successfully copied (VCOPY signal is asserted) Copied MAC and Void frames

are not included in this count

For SMT NSA frames the Frame Copied Count only increments for NSA frames received with the A Indicator as an R symbol for

which the frame was copied SMT NSA frames received with the A Indicator as an S do not cause this count to increment even

if the frame is successfully copied

Increments are available on increment (CILRFRCOP) and when the 20-bit counter overflows and wraps around (COLRFRC-

OP)

ACCESS RULES

Address

Read

Write

AC – AFh

Always

Stop Mode

FCCT0

Zero

FCCT1

Zero

CT(19)

CT(18)

CT(17)

CT(16)

FCCT2

CT(15)

CT(14)

CT(13)

CT(12)

CT(11)

CT(10)

CT(9)

CT(8)

FCCT3

CT(7)

CT(6)

CT(5)

CT(4)

CT(3)

CT(2)

CT(1)

CT(0)

DP83261AVF 데이터시트(PDF) 65 Page - National Semiconductor (TI)

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