DP83816AVNG National Semiconductor, DP83816AVNG Datasheet - Page 76

• Manufacturer Part Number: DP83816AVNG
• Description: Ethernet Media Access Controller IC
• Manufacturer: National Semiconductor

Specifications of DP83816AVNG

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• Features: Physical Layer
• Package / Case: 144-LQFP
• Package: 144LQFP
• Standard Supported: IEEE 802.3|IEEE 802.3u|IEEE 802.3x
• Communication Mode: Full Duplex|Half Duplex
• Network Interface: MII
• Data Rate: 10|100 Mbps
• Host Interface: PCI
• Operating Supply Voltage: 3.3 V
• Loopback Mode: Internal
• Maximum Power Dissipation: 0.504 W
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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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