AM79C875KI AMD (ADVANCED MICRO DEVICES), AM79C875KI Datasheet - Page 17

• Manufacturer Part Number: AM79C875KI
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM79C875KI

• Lead Free Status / RoHS Status: Not Compliant

In 100BASE-FX mode, the external fiber-optic receiver
performs the signal energy detection function and com-
municates this information directly to the NetPHY™
4LP device through SDI± pins.
In 10BASE-T mode, a link-pulse detection circuit will
constantly monitor the RX± pins for the presence of
valid link pulses.
MII (TXD[3:0])
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
0 1 0 1
0 1 0 1
0 1 10
Name
C
D
R
H
A
B
E
F
K
T
V
V
V
V
V
V
V
V
V
V
0
1
2
3
4
5
6
7
8
9
J
I
Table 1. Code-Group Mapping
PCS Code-Group
1 1 1 1 0
0 1 0 0 1
1 0 1 0 0
1 0 1 0 1
0 1 0 1 0
0 1 0 1 1
0 1 1 1 0
0 1 1 1 1
1 0 0 1 0
1 0 0 1 1
1 0 1 1 0
1 0 1 1 1
1 1 0 1 0
1 1 0 1 1
1 1 1 0 0
1 1 1 0 1
1 1 1 1 1
1 1 0 0 0
1 0 0 0 1
0 1 1 0 1
0 0 1 1 1
0 0 1 0 0
0 0 0 0 0
0 0 0 0 1
0 0 0 1 0
0 0 0 1 1
0 0 1 0 1
0 0 1 1 0
0 1 0 0 0
0 1 1 0 0
1 0 0 0 0
1 1 0 0 1
Am79C875
10BASE-T Block
The NetPHY™ 4LP transceiver incorporates four fully
independent 10BASE-T physical layer functions, in-
cluding clock recovery (ENDEC), MAUs, and trans-
ceiver functions. The NetPHY™ 4LP transceiver
receives 10-Mbps data from the MAC, switch, or re-
peater across the RMII at 5 million di-bits per second.
It then Manchester encodes the data before transmis-
sion to the network.
End-of-Stream Delimiter, Part 1 of 2; always used in
End-of-Stream Delimiter, Part 2 of 2; always used in
Start-of-Stream Delimiter, Part 1 of 2; always used
Start-of-Stream Delimiter, Part 2 of 2; always used
Transmit Error; used to force signaling errors
IDLE; used as inter-Stream fill code
Interpretation
in pairs with K
in pairs with J
Invalid Code
Invalid Code
Invalid Code
Invalid Code
Invalid Code
Invalid Code
Invalid Code
Invalid Code
Invalid Code
Invalid Code
pairs with R
pairs with T
Data A
Data B
Data C
Data D
Data E
Data 0
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 8
Data 9
Data F
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