DP83816-MAAP National Semiconductor, DP83816-MAAP Datasheet - Page 76
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DP83816-MAAP
Manufacturer Part Number
DP83816-MAAP
Description
BOARD EVALUATION DP83816
Manufacturer
National Semiconductor
Datasheet
1.DP83816AVNGNOPB.pdf
(106 pages)
Specifications of DP83816-MAAP
Main Purpose
Interface, Ethernet
Utilized Ic / Part
DP83816
Lead Free Status / RoHS Status
Not applicable / Not applicable
Secondary Attributes
-
Embedded
-
Primary Attributes
-
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4.0 Register Set
4.3.16 10BASE-T Status/Control Register
15:9
Bit
8
7
6
5
4
3
2
1
0
LOOPBACK_10_DIS 10BASE-T Loopback Disable:
HEARTBEAT_DIS
FORCE_POL_COR
FORCE_LINK_10
AUTOPOL_DIS
JABBER_DIS
POLARITY
Bit Name
Reserved
Unused
LP_DIS
Offset: 00E8h
(Continued)
Tag: TBTSCR
This bit is OR’ed with bit 14 (Loopback) in the BMCR.
1 = 10 Mb/s Loopback is enabled
0 = 10 Mb/s Loopback is disabled
Normal Link Pulse Disable:
1 = Transmission of NLPs is disabled
0 = Transmission of NLPs is enabled
Force 10 Mb/s Good Link:
1 = Forced Good 10 Mb/s Link
0 = Normal Link Status
Force 10 Mb/s Polarity Correction:
1 = Force inverted polarity
0 = Normal polarity
10 Mb/s Polarity Status: RO/LH
This bit is a duplication of bit 12 in the PHYSTS register. Both bits will be cleared upon a read of
either register.
1 = Inverted Polarity detected
0 = Correct Polarity detected
Auto Polarity Detection & Correction Disable:
1 = Polarity Sense & Correction disabled
0 = Polarity Sense & Correction enabled
Reserved
This bit must be written as a one.
Heartbeat Disable: This bit only has influence in half-duplex 10 Mb/s mode.
1 = Heartbeat function disabled
0 = Heartbeat function enabled
When the device is operating at 100 Mb/s or configured for full duplex, this bit will be ignored - the
heartbeat function is disabled.
Jabber Disable:
1 = Jabber function disabled
0 = Jabber function enabled
Applicable only in 10BASE-T Full Duplex.
Access: Read Write
Size: 16 bits
76
Description
Hard Reset: 0804h
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