2
ISAnet-EVAL-KT
P R E L I M I N A R Y
not support bus-mastering peripherals. With the addition
of the ISAnet adapter card, the user has a complete
PCnet-ISA II shared memory development environment.
For users who have already designed and imple-
mented the hardware portion of their application based
on the PCnet-ISA II Ethernet controller and just need
the software driver and documentation, a package con-
taining only the binary driver software and documenta-
tion is available from AMD’s Literature Distribution
(Order PID# 21450).
Software
Included in both the ISAnet evaluation kit and the software/
documentation only package, are a number of software
programs and utilities on a set of diskettes. The driver soft-
ware diskette contains binary code for Novell DOS ODI and
NDIS 2.0 for DOS driver software. Source code for these
two drivers can be acquired from AMD upon completion
and execution of an license agreement form. The
for ISAnet Driver Source Code License Form
the
Quick-Start ISAnet User’s Brief
form to “AMD, ISAnet Driver Administration, M/S: 126, Sys-
tems Software Engineering.”
The utility diskette contains a variety of software pro-
grams including EESETUP and EE_DUMP for pro-
gramming and examining the EEPROM. Also
included are diskettes containing electronic copies of
the schematics, bill of materials, layout artwork, and
Gerber files for the PCnet-ISA II shared memory
board. A diskette containing a number of utilities for
é
lan/
Request
is included in
. Send the completed
configuring and interfacing the PCnet-ISA II to the
é
lanSC400 microcontroller concludes the diskette set.
CAUTION: The user is highly cautioned against us-
ing the binary driver software from the PCnet-ISA II-
KT/2 Evaluation Kit on the ISAnet adapter card. It
will not function!
PCnet-ISA II Ethernet Controller
The Am79C961A PCnet-ISA II Ethernet controller, a
single-chip Ethernet controller, is a highly integrated
Ethernet controller with a built-in ISA bus and PHY
layer (Manchester Encoder/Decoder and 10BASE-T
transceiver). The PCnet-ISA II device can be used in ei-
ther bus-mastering or shared memory mode. On the
ISAnet adapter card, the PCnet-ISA II device is config-
ured for shared memory operation mode. The 16-bit
ISA interface makes an ideal straight-forward connec-
tion to an x86-style local bus. For more information
about the PCnet-ISA II controller, refer to the
Am79C961A PCnet-ISA II Data Sheet
The PCnet-ISA II Ethernet controller is part of the
AMD PCnet family of single-chip Ethernet controllers
based on the original LANCE/CLANCE architecture.
Other members include the following: the Am79C965
PCnet-32 (for VL or other general x486, 32-bit bus
environments), the Am79C970A PCnet-PCI II device
and the Am79C971 PCnet-
environments). Like the PCnet-ISA II controller, the
PCnet-32 and PCnet-PCI II devices are 10 Mbps
Ethernet controllers. The Am79C971 PCnet-
device is a 10/100 Mbps Ethernet controller.
, PID#19364.
FAST
device (for PCI bus
FAST
Figure 1.
ISAnet Board Layout Diagram
ROM Sockets
EEPROM
SRAMs
PAL
PCnet-ISA II
10BASE-T/AUI
Shared Memory/
PIO Card
Transformer
Crystal
AUI
LEDs
10BASE-T
Am79C961A
Transformer
21553A-1