AM79C978 Advanced Micro Devices, AM79C978 Datasheet - Page 3

• Manufacturer Part Number: AM79C978
• Description: Single-Chip 1/10 Mbps PCI Home Networking Controller
• Manufacturer: Advanced Micro Devices

Ethernet controllers in the PCnet Family (except
I L A C C ™ ( A m 7 9 C 9 0 0 ) ) , i n c l u d i n g P C n e t - I S A
(Am79C960), PCnet-ISA+ (Am79C961), PCnet-ISA II
(Am79C961A), PCnet-32 (Am79C965A), PCnet-PCI
(Am79C970), PCnet-PCI II (Am79C970A), PCnet-
FAST (Am79C971), and PCnet-FAST+ (Am79C972).
The Buffer Management Unit supports the LANCE and
PCnet descriptor software models.
While consuming minimal network resources, AMD’s
innovative any1Home™ Link Detection Packet for
HomePNA networks provides a means to indicate to
the MAC and thus the upper layers of the system pro-
tocol that a valid network (as defined by Home Net-
working Alliance) has been detected. The Link
Detection Packet is also capable of detecting a network
failure and allows the upper layer protocol to take cor-
Am79C978
rective action. Thus, the Link Detection Packet ensure
strict compliance to the Microsoft PC97, PC98, and
Home PNA requirements.
The integrated Am79C978 controller supports auto-
configuration in the PCI configuration space. Additional
integrated controller configuration parameters, includ-
ing the unique IEEE physical address, can be read
from an external non-volatile memory (EEPROM) im-
mediately following system reset.
In addition, the Am79C978 controller provides pro-
grammable on-chip LED drivers for transmit, receive,
collision, link integrity, Magic Packet status, speed, ac-
tivity, power output, address match, full-duplex, or 100
Mbps status.
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