dp83251 National Semiconductor Corporation, dp83251 Datasheet - Page 93

• Manufacturer Part Number: dp83251
• Description: Player Device Fddi Physical Layer Controller
• Manufacturer: National Semiconductor Corporation

ALS
ALS
ALS
ALS
ILS
ILS
ILS
ILS
Stuff Byte during ILS
Not ALS and Not ILS
Not ALS and Not ILS
Not ALS and Not ILS
Not ALS and Not ILS
Stuff Byte during
Not ILS
EB Overflow Underflow
SMT PI Connnection (LSU)
8 0 Detailed Descriptions
Where
n
C
N
I
M
I’
V’
LS
u
k
x
e
e
e
e
e
e
e
e
e
e
e
Current Line State
Any control symbol in V R S T I H
0000
Idle Symbol
Any symbol that matches the current line state
1011
0011
ALS
ILS
NSD
MLS
HLS
QLS
NLS
1
0
Don’t care
Any data symbol in 0 1 2
Line State
e
e
Indicates symbol received does not match current line state
Indicates symbol received matches current line state
e
e
e
e
e
e
e
e
e
e
000
001
110
111
010
100
101
PHY Invalid
Code for data symbol in a data control mixture byte
First symbols of the byte in Idle Line State
Control Bit
0
0
1
1
1
1
x
x
x
1
1
x
x
x
F
(Continued)
Symbol 1
n
n
C
C
I
I
Not I
Not I
x
M
M
Not M
Not M
x
Data
Table 8-2
93
Control Bit
0
1
0
1
1
x
1
x
x
1
x
1
x
x
Symbol 2
n
C
n
C
I
Not I
I
Not I
x
M
Not M
M
Not M
x
Data
Control Bit
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
National Code
n-n
N-C
C-N
C-C
I’-k-LS
I’-u-LS
I’-u-LS
I’-u-LS
I’-k-ILS
V’-k-LS
V’-u-LS
V’-u-LS
V’-u-LS
V’-k-LS V’-u-LS
or I’-u-ILS
0011 1011
0011 1010
Data