78Q2132 TDK Corp., 78Q2132 Datasheet - Page 15

• Manufacturer Part Number: 78Q2132
• Description: 1/10base-t Homepna/ethernet Transceiver
• Manufacturer: TDK Corp.

MR4 - AUTO-NEGOTIATION ADVERTISEMENT REGISTER
MR5 - AUTO-NEGOTIATION LINK PARTNER ABILITY REGISTER
DETAIL
4.12:11
4.12:5
5.12:5
4.4:0
5.4:0
4.15
4.14
4.13
4.10
5.15
5.14
5.13
BIT
BIT
4.9
4.8
4.7
4.6
4.5
SYMBOL
SYMBOL
RSVD
RSVD
given
S4:0
TAF
ACK
S4:0
TAF
NP
RF
A5
A4
A3
A2
A1
A0
NP
RF
R,W,(03h)
R, 00001
R, 00000
R,W,(1)
R,W,(1)
R,W,0
below.
TYPE
TYPE
R,0
R,0
R,0
R,0
R,0
R,0
R,0
R, 0
R,0
R,0
R,0
DESCRIPTION
NEXT PAGE: Not supported; permanently tied low
RESERVED: This bit is permanently tied low
REMOTE FAULT:
management interface indicates to the link partner a remote fault
condition.
TECHNOLOGY ABILITY FIELD: The default value of this field is
dependent upon MR1.15:11 bits. This field can be overwritten by
management to auto-negotiate to an alternate common technology.
Writing to this register has no effect until auto-negotiation is
enabled.
RESERVED: For future technology.
tied low.
FULL DUPLEX PAUSE: When set by the controller this bit will
cause advertisment, using FLP's of the ability to pause when in full
duplex mode. Not applicable in HomePNA mode.
100BASE-T4: Not supported; permanently tied low
100BASE-TX FULL DUPLEX: Not supported; permanently tied low
100BASE-TX: Not supported; permanently tied low
10BASE-T FULL DUPLEX : The default value of this bit follows
MR1.12. When the default is zero, this bit cannot be set by the
management interface.
10BASE-T: The default value of this bit follows MR1.11. When the
default is zero, this bit cannot be set by the management interface.
SELECTOR FIELD: Hard coded with the value of 00001 for
IEEE-802.3.
DESCRIPTION
NEXT PAGE: When set, it indicates that the link partner wishes to
engage in next page exchange.
ACKNOWLEDGE: When set, it indicates that the link partner has
successfully received at least three consecutive and consistent FLP
bursts.
REMOTE FAULT: When set, it indicates that the link partner has a
fault.
TECHNOLOGY ABILITY FIELD: This field contains the technology
ability of the link partner.
MR4.12:5.
SELECTOR FIELD: This field contains the type of message sent by
the link partner. For IEEE-802.3 compliant link partner transceiver,
this field should be 00001.
15
HomePNA/Ethernet Transceiver
When internally set to logic one, the MII
The bit definition is the same as
These bits are permanently
1/10BASE-TX
78Q2132