DP83848I-MAU-EK/NOPB National Semiconductor, DP83848I-MAU-EK/NOPB Datasheet - Page 59
DP83848I-MAU-EK/NOPB
Manufacturer Part Number
DP83848I-MAU-EK/NOPB
Description
EVAL BOARD PHYTER IND TEMP
Manufacturer
National Semiconductor
Datasheet
1.DP83848I-MAU-EKNOPB.pdf
(84 pages)
Specifications of DP83848I-MAU-EK/NOPB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Bit
7
6
5
4
3
2
1
0
HEARTBEAT_DIS
FORCE_LINK_10
JABBER_DIS
RESERVED
RESERVED
RESERVED
POLARITY
Bit Name
LP_DIS
Table 30. 10Base-T Status/Control Register (10BTSCR), address 0x1A
Default
RO/LH
0, RW
0, RW
0, RW
0, RW
1, RW
0, RW
0, RW
Normal Link Pulse Disable:
1 = Transmission of NLPs is disabled.
0 = Transmission of NLPs is enabled.
Force 10Mb Good Link:
1 = Forced Good 10Mb Link.
0 = Normal Link Status.
RESERVED:
Must be zero.
10Mb Polarity Status:
This bit is a duplication of bit 12 in the PHYSTS register. Both bits
will be cleared upon a read of 10BTSCR register, but not upon a
read of the PHYSTS register.
1 = Inverted Polarity detected.
0 = Correct Polarity detected.
RESERVED:
Must be zero.
RESERVED:
Must be set to one.
Heartbeat Disable: This bit only has influence in half-duplex 10Mb
mode.
1 = Heartbeat function disabled.
0 = Heartbeat function enabled.
When the device is operating at 100Mb or configured for full
duplex operation, this bit will be ignored - the heartbeat func-
tion is disabled.
Jabber Disable:
Applicable only in 10BASE-T.
1 = Jabber function disabled.
0 = Jabber function enabled.
59
Description
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