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STE100P 数据表(PDF) 14 Page - STMicroelectronics

部件名 STE100P
功能描述  10/100 FAST ETHERNET 3.3V TRANSCEIVER
PDF  31 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STE100P 数据表(HTML) 14 Page - STMicroelectronics

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STE100P
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11, 10
---
reserved
9
ENRLB
Enable remote loop-back function. 1: enable
0: disable
0
R/W
8
ENDCR
Enable DC restoration.
0: disable DC restoration.
1: enable DC restoration.
1R/W
7
ENRZI
Enable the conversions between NRZ and NRZI.
0: disable the data conversion between NRZ and NRZI.
1: enable the data conversion of NRZI to NRZ in receiving and
NRZ to NRZI in transmitting.
1R/W
6
EN4B5B
Enable 4B/5B encoder and decoder
0: the 4B/5B encoder and decoder are bypassed
1: the 4B/5B encoder and decoder are enabled..
1
R/W
5
ISOTX
Transmit Isolation. When 1, isolate from MII and tx+/-. The bit
will be set to one if the PHY address is set to 00000 at power-
up/reset This bit must be 0 for normal operation
0R/W
4~2
CMODE
Reporting of current operation mode of transceiver.
000: in auto-negotiation
001: 10Base-T half duplex
010: 100Base-TX half duplex
011: reserved
100: reserved
101: 10Base-T full duplex
110: 100Base-TX full duplex
111: isolation, auto-negotiation disable
000
RO
1
DISMLT
Disable MLT3.
0: the MLT3 encoder and decoder are enabled.
1: the MLT3 encoder and decoder are bypassed.
0R/W
0
DISCRM
Disable Scramble.
0: the scrambler and de-scrambler is enabled.
1: the scrambler and de-scrambler are disabled.
0R/W
PR20- XMC, XCVR Mode control
15~12
---
Reserved
0
RO
11
LD
Long Distance mode of 10Base-T.
0: normal squelch level.
1: reduces 10Base-T squelch level for extended cable length.
As the length of the cable increases, so does the current.
0R/W
10~8
---
Reserved
0
RO
Table 5. Register Descriptions (continued)
Bit #
Name
Descriptions
Default Val
RW Type



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