78Q2132 TDK Corp., 78Q2132 Datasheet - Page 14

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

78Q2132
1/10BASE-TX
HomePNA/Ethernet Transceiver
REGISTER DESCRIPTION
MR1 - STATUS REGISTER
MR2, 3 - PHY IDENTIFIER REGISTER
3.15:10
2.15:0
3.9:4
3.3:0
BIT
1.3
1.2
1.1
1.0
SYMBOL
ANEGA
EXTD
LINK
JAB
OUI
OUI
MN
RN
(continued)
R, 011100
R, 010010
R, 000Eh
R, 0, RC
R,0001
(continued)
TYPE
R, (0)
R, 0
R, 1
DESCRIPTION
HPNAEN=0: AUTO-NEGOTIATION ABILITY: This bit, when set,
indicates the ability to perform auto-negotiation. The value of this
bit is determined by the ANEGA pin
HPNAEN=1: not applicable
GLOBAL
HPNAEN=0: LINK STATUS: A logic one indicates that a valid
10BaseT link has been established.
transition from an OK status to a NOT-OK status, this bit will
become cleared and remain cleared until it is read.
HPNAEN=1: LINK STATUS is always logic one if MR19.11 is equal
to logic zero. This reflects that the device will be put into HomePNA
v1.0 mode. If MR19.11 is a logic 1, then LINK STATUS will reflect
the link integrity of the link defined in HomePNA v1.1LINK STATUS:
A logic one indicates that a valid link has been established. If the
link status should transition from an OK status to a NOT-OK status,
this bit will become cleared and remain cleared until it is read.
HPNAEN=0: JABBER DETECT: In 10Base-T mode, this bit is set during
a jabber event. After a jabber event it remains set until cleared by a read
operation.
HPNAEN=1: not applicable.
GLOBAL: Works for both HPNAEN=0,1
EXTENDED CAPABILITY: This bit is permanently set to logic one
to indicate that the 78Q2132 provides an extended register set
(MR2 and beyond).
ORGANIZATIONALLY UNIQUE IDENTIFIER: This value is 00-
C0-39 for TDK Semiconductor Corporation. This translates to a
value of 000Eh for this register.
ORGANIZATIONALLY UNIQUE IDENTIFIER: Remaining 6 bits
of the OUI.
MODEL NUMBER: The last 2 digits of the model number
78Q2132 is encoded into the 6 bits. (32d-20d=12h)
REVISION NUMBER: For example, a value of 0010 corresponds
to the second version of the silicon.
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If the link status should