DP83256VF-AP NSC [National Semiconductor], DP83256VF-AP Datasheet - Page 26

• Manufacturer Part Number: DP83256VF-AP
• Manufacturer: NSC [National Semiconductor]

3 0 Functional Description
Noise Event
Where
TABLE 3-5 Noise Event Description
e
SD
CD
PB
PLS
PI
ILS
ALS
ULS
HLS
QLS
MLS
NLS
ULS
I
J
K
R
S
T
A
B
n
a
E
SD
SD CD PI
SD CD
E CD
delimiter
e
e
e
e
e
e
e
e
a
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
Logical AND
Logical OR
Logical NOT
Signal Detect
Clock Detect
Previous Byte
Previous Line State
PHY Invalid
MLS
(ALS
Idle Line State
Active Line State
Unknown Line State
Halt Line State
Quiet Line State
Master Line State
Noise Line State
Unknown Line State
Idle symbol
First symbol of start delimiter
Second symbol of start
Reset symbol
Set symbol
End Delimiter
n
n
any data symbol
E PI (PB
a
a
a
R
R
a
E (II
a
a
a
NLS
ILS)
S
S
a
a
a
e
e
a
JK
T
T
II) AB
HLS
(Continued)
a
a
ULS
AB)
I
a
QLS
PLS
a
26
LINK ERROR MONITOR
Link Error Monitoring is accomplished in the PLAYER
vice through the Link Error Monitor Counter The initial value
of this down counter is set using the Link Error Threshold
Register (LETR) A snapshot of the counter can be taken
with the Current Link Error Count Register (CLECR)
A Link Error is defined as follows
Link Error
Event
Set Link Error Flag
Clear Link Error Flag
Where
TABLE 3-6 Link Error Event Description
e
Link Error Flag
SH
Error Flag
JK)
ILS
ALS
ULS
x
I
H
J
K
V
R
S
T
N
PLS
SD
SB
a
E
a
ALS (I E I
ALS
ILS
ILS JK
II
a
a
E SD)
TH)
E SD
JK)
delimiter
0000 by the PLAYER
Receiver Block in symbol pairs
that contain a data and a control
symbol
before a JK symbol pair for
recentering or due to off-axis JK
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
a
Logical NOT
Logical OR
Logical AND
Idle Line State
Active Line State
Unknown Line State
Any symbol
Idle symbol
Halt symbol
First symbol of start delimiter
Second symbol of start
Violation symbol
Reset symbol
Set symbol
End delimiter symbol
Data symbol converted to
Previous Line State
Signal Detect
Stuff Byte Byte inserted by EB
ALS (HH
a
E SB
a
ALS JK
ULS (PLS
a
xV
ULS (PLS
ILS
a
E SB
Vx
E (HH
a
E (II
a
a
e
NH
H E H)
E (HH
ALS Link
a
a
e
a
a
JK)
HI
ALS)
device
RH
a
a
a
a
a
II
a
HI
a
de-