am79c961 Advanced Micro Devices, am79c961 Datasheet - Page 33

• Manufacturer Part Number: am79c961
• Description: Pcnettm-isa Jumperless Single-chip Ethernet Controller For Isa
• Manufacturer: Advanced Micro Devices

PLUG AND PLAY
Plug and Play is a standardized method of configuring
jumperless adapter cards in a system. Plug and Play is a
Microsoft standard and is based on a central software
configuration program, either in the operating system or
elsewhere, which is responsible for configuring all Plug
and Play cards in a system. Plug and Play is fully sup-
ported by the PCnet-ISA
For a copy of the Microsoft Plug and Play specification
contact Microsoft Inc. This specification should be refer-
enced in addition to PCnet-ISA
Manual and this data sheet.
Bus
ISA
System Data
24-Bit System
Address
16-Bit
+
ethernet controller.
VCC
Plug and Play Compatible with Flash Memory Support
SD[0-15]
SA[0-19]
SHFBUSY SRAM BPAM
PCnet-ISA
Controller
+
Technical Reference
PRAB[0-15]
Shared Memory Block Diagram
+
P R E L I M I N A R Y
PRDB[2]/EEDO
PRDB[0]/EESK
PRDB[1]/EEDI
Am79C961
IRQ12/SRCS
PRDB[0-7]
SRWE
SROE
BPCS
EECS
Operation
If the PCnet-ISA
the network, the device will come up active at RESET,
otherwise it will come up inactive. Information stored in
the serial EEPROM is used to identify the card and to
describe the system resources required by the card,
such as I/O space, Memory space, IRQs and DMA
channels. This information is stored in a standardized
Read Only format. Operation of the Plug and Play sys-
tem is shown as follows.
+
ethernet controller is used to boot off
A[0-15]
WE
CS
DO
DI
SK
CS
A[0-15]
WE
CS
SIN
CLK
BPAM
SRAM
SHFBUSY
SA[16]
External
EEPROM
SRAM
Flash
Logic
Glue
MEMCS16
LA[17-23]
D[0-7]
D[0-7]
ORG
OE
OE
AMD
18183B-10
V
1-507
CC