參數(shù)資料
型號： LAN8187-JT
廠商： STANDARD MICROSYSTEMS CORP
元件分類： 微控制器/微處理器
英文描述： High-Performance MII and RMII 10/100 Ethernet PHY with HP Auto-MDIX
中文描述： 1 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, TQFP-64
文件頁數(shù)： 19/66頁
文件大?。?/td> 545K
代理商： LAN8187-JT
High-Performance MII and RMII 10/100 Ethernet PHY with HP Auto-MDIX
Datasheet
SMSC LAN8187/LAN8187I
19
Revision 0.6 (02-24-06)
DATASHEET
The encoding process may be bypassed by clearing bit 6 of register 31. When the encoding is
bypassed the 5
th
transmit data bit is equivalent to TX_ER.
Note that encoding can be bypassed only when the MAC interface is configured to operate in MII
mode.
Table 4.1 4B/5B Code Table
CODE
GROUP
SYM
RECEIVER
INTERPRETATION
TRANSMITTER
INTERPRETATION
11110
0
0
0000
DATA
0
0000
DATA
01001
1
1
0001
1
0001
10100
2
2
0010
2
0010
10101
3
3
0011
3
0011
01010
4
4
0100
4
0100
01011
5
5
0101
5
0101
01110
6
6
0110
6
0110
01111
7
7
0111
7
0111
10010
8
8
1000
8
1000
10011
9
9
1001
9
1001
10110
A
A
1010
A
1010
10111
B
B
1011
B
1011
11010
C
C
1100
C
1100
11011
D
D
1101
D
1101
11100
E
E
1110
E
1110
11101
F
F
1111
F
1111
11111
I
IDLE
Sent after /T/R until TX_EN
11000
J
First nibble of SSD, translated to “0101”
following IDLE, else RX_ER
Sent for rising TX_EN
10001
K
Second nibble of SSD, translated to
“0101” following J, else RX_ER
Sent for rising TX_EN
01101
T
First nibble of ESD, causes de-assertion
of CRS if followed by /R/, else assertion
of RX_ER
Sent for falling TX_EN
00111
R
Second nibble of ESD, causes
deassertion of CRS if following /T/, else
assertion of RX_ER
Sent for falling TX_EN
00100
H
Transmit Error Symbol
Sent for rising TX_ER
00110
V
INVALID, RX_ER if during RX_DV
INVALID
11001
V
INVALID, RX_ER if during RX_DV
INVALID
00000
V
INVALID, RX_ER if during RX_DV
INVALID
00001
V
INVALID, RX_ER if during RX_DV
INVALID
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