- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄366550 > AM79C961AKIW (ADVANCED MICRO DEVICES INC) PCnet⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA PDF資料下載
參數(shù)資料
| 型號： | AM79C961AKIW |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | PCnet⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA |
| 中文描述： | 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132 |
| 封裝： | PLASTIC, QFP-132 |
| 文件頁數(shù)： | 49/206頁 |
| 文件大?。?/td> | 1507K |
| 代理商： | AM79C961AKIW |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁當前第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁第179頁第180頁第181頁第182頁第183頁第184頁第185頁第186頁第187頁第188頁第189頁第190頁第191頁第192頁第193頁第194頁第195頁第196頁第197頁第198頁第199頁第200頁第201頁第202頁第203頁第204頁第205頁第206頁
Am79C961A
49
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
supported by the PCnet-ISA II ethernet controller.
For a copy of the Microsoft Plug and Play specification
contact Microsoft Inc. This specification should be
referenced in addition to PCnet-ISA II Technical
Reference Manual and this data sheet.
Operation
If the PCnet-ISA II ethernet controller is used to boot off
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
system is shown as follows:
I
Isolate the Plug and Play card
I
Read the cards resource data
I
Identify the card
I
Configure its resources
The Plug and Play mode of operation allows the follow-
ing benefits to the end user.
I
Eliminates all jumpers or dip switches from the
adapter card
I
Ease of use is greatly enhanced
I
Allows the ability to uniquely address identical cards
in a system, without conflict
I
Allows the software configuration program or OS to
read out the system resource requirements
required by the card
I
Defines a mechanism to set or modify the current
configuration of each card
I
Maintain backward compatibility with other ISA bus
adapters
Auto-Configuration Ports
Three 8 bit I/O ports are used by the Plug and Play con-
figuration software on each Plug and Play device to
communicate with the Plug and Play registers. The
ports are listed in the table below. The software config-
uration space is defined as a set of 8 bit registers.
These registers are used by the Plug and Play software
configuration to issue commands, access the resource
information, check status, and configure the PCnet-ISA
II controller hardware.
The address and Write_DATA ports are located at
fixed, predefined I/O addresses. The Write_Data port is
located at an alias of the Address port. All three
auto-configuration ports use a 12-bit ISA address
decode.
The READ_DATA port is relocatable within the range
0x203
–
0x3FF by a command written to the
WRITE_DATA port.
ADDRESS PORT
The internal Plug and Play registers are accessed by
writing the address to the ADDRESS PORT and then
either reading the READ_DATA PORT or writing to the
WRITE_DATA PORT. Once the ADDRESS PORT has
been written, any number of reads or writes can occur
without having to rewrite the ADDRESS PORT.
The ADDRESS PORT is also the address to which the
initiation key is written to, which is described later.
WRITE_DATA PORT
The WRITE_DATA PORT is the address to which all
writes to the internal Plug and Play registers occur. The
destination of the data written to the WRITE_DATA
PORT is determined by the last value written to the
ADDRESS PORT.
READ_DATA PORT
The READ_DATA PORT is used to read information
from the internal Plug and Play registers. The register
to be read is determined by the last value of the
ADDRESS PORT.
The I/O address of the READ_DATA PORT is set by
writing the chosen I/O location to Plug and Play Reg-
ister 0. The isolation protocol can determine that the
address chosen is free from conflict with other devices
I/O ports.
Initiation Key
The PCnet-ISA II controller is disabled at reset when
operating in Plug and Play mode. It will not respond to
any memory or I/O accesses, nor will the PCnet-ISA II
controller drive any interrupts or DMA channels.
The initiation key places the PCnet-ISA II device into
the configuration mode. This is done by writing a pre-
defined pattern to the ADDRESS PORT. If the proper
sequence of I/O writes are detected by the PCnet-ISA
II device, the Plug and Play auto-configuration ports
Port Name
Location
Type
ADDRESS
0X279 (Printer Status Port)
Write-only
WRITE-DATA
0xA79 (Printer status port +
0x0800)
Write-only
READ-DATA
Relocatable in range
0x0203-0x03FF
Read-only
相關PDF資料 |
PDF描述 |
|---|---|
| AM79C961AVCW | PCnet⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA |
| AM79C961AVIW | PCnet⑩-ISA II Jumperless, Full Duplex Single-Chip Ethernet Controller for ISA |
| Am79C965A | PCnet?-32 Single-Chip 32-Bit Ethernet Controller |
| AM79C970AKCW | PCnet-PCI II Single-Chip Full-Duplex Ethernet Controller for PCI Local Bus Product |
| AM79C970AKC | PCnet-PCI II Single-Chip Full-Duplex Ethernet Controller for PCI Local Bus Product |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AM79C961APDLUTS | 制造商:Advanced Micro Devices 功能描述: |
| AM79C961AVC | 制造商:Rochester Electronics LLC 功能描述: 制造商:Advanced Micro Devices 功能描述:LAN Node Controller, 144 Pin, TQFP |
| AM79C961AVC/W | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller |
| AM79C961AVC\\W | 制造商:Rochester Electronics LLC 功能描述: |
| AM79C961AVC\W | 制造商:Rochester Electronics LLC 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。