AM79C971VCW Advanced Micro Devices, AM79C971VCW Datasheet - Page 249

• Manufacturer Part Number: AM79C971VCW
• Description: PCnet-FAST Single-Chip Full-Duplex 10/100 Mbps Ethernet Controller for PCI Local Bus
• Manufacturer: Advanced Micro Devices

6
5
4
3
MFPS
ANC
RF
ANA
0
0
0
1
Management Frame
Preamble
Suppression.
Defaults
after power-up and
after hardware resets
(H_RESET). This is
used
Am79C971 controller
to reduce the time
delay overhead with
processing the MII
Management
Frames. Strips the 32
bit preamble off of
each frame sent.
Auto-Negotiation
Complete. Defaults to
ZERO after power-up
and after hardware
resets
This bit indicates that
the Auto-Negotiation
process
completed and that
the
registers
valid.
Remote
Defaults
after power-up and
after hardware resets
(H_RESET). This is a
indication
remote
detected a fault with
your system.
Auto-Negotiation
Ability.
ONE after power-up
and after hardware
resets
This bit indicates that
PHY’s ability to do
Auto-Negotiation.
This bit is defaulted
ONE
Am79C971
controller.
contents
(H_RESET).
Defaults
(H_RESET).
node
by
on
to
to
4-8
that
ZERO
ZERO
Fault.
has
has
are
the
the
the
Am79C971
of
to
2
1
0
Register 2: PHY Identifier
Bit
15-0
Register 3: PHY Identifier
Bit
15-10 OUI
9-4
3-0
LS0
JD
EC
Name
OUI
Name
MMN
RN
Default
Default
0
0
1
0000
68
01
1
Link Status. Defaults
to ZERO after power-
up and after hardware
resets
This bit indicates the
current status of the
network link.
Jabber
Defaults
after power-up and
after hardware resets
(H_RESET). This bit
indicates that a jabber
event occurred on the
network.
Extended Capability.
Defaults to ONE after
power-up and after
hardware
(H_RESET). This bit
indicates
PHY
Negotiation
capability. If this bit is
not set then the line
must be forced.
Description
Organizationally
Unique
Administered by the
IEEE.
Description
Organizationally
Unique
Administered by the
IEEE.
Manufacturers Model
Number.
Am79C971 Controller
will have a default
model number of 1.
Revision
Initially ZERO.
has
(H_RESET).
to
that
Identifier.
Identifier.
Number.
Detect.
ZERO
resets
Auto-
E-3
The
the