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參數(shù)資料
| 型號： | AM79C90 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | CMOS Local Area Network Controller for Ethernet (C-LANCE) |
| 中文描述： | 的CMOS局域網(wǎng)控制器（丙應聘以太網(wǎng)） |
| 文件頁數(shù)： | 1/62頁 |
| 文件大?。?/td> | 437K |
| 代理商： | AM79C90 |
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PRELIMINARY
This document contains information on a product under development at Advanced Micro Devices. The
information is intended to help you evaluate this product. AMD reserves the right to change or discontinue
work on this proposed product without notice.
Publication#
17881
Issue Date:
January 1998
Rev:
C
Amendment/
0
1
Am79C90
CMOS Local Area Network Controller for Ethernet
(C-LANCE)
DISTINCTIVE CHARACTERISTICS
I
Compatible with Ethernet and IEEE 802.3
10BASE-5 Type A, and 10BASE-2 Type B,
“Cheapernet,” 10BASE-T
I
Easily interfaced with 80x86, 680x0, Am29000
Z8000
microprocessors
I
On-board DMA and buffer management, 64-byte
Receive, 48-byte Transmit FIFOs
I
24-bit-wide linear addressing (Bus Master Mode)
I
Network and packet error reporting
,
I
Back-to-back packet reception with as little as
0.5
μ
s interframe spacing
Diagnostic Routines
— Internal/external loopback
— CRC logic check
— Time domain reflectometer
Low power consumption for power-sensitive
applications
Completely software- and hardware-compatible with
AMD’s LANCE device (Am7990) (see Appendix A)
I
I
I
GENERAL DESCRIPTION
The Am79C90 CMOS Local Area Network Controller
for Ethernet (C-LANCE) is a 48-pin VLSI device de-
signed to greatly simplify interfacing a microcomputer or
minicomputer to an IEEE 802.3/Ethernet Local Area
Network. The C-LANCE, in conjunction with the
Am7992B Serial Interface Adapter (SIA), Am7996 or
Am79C98 and Am79C100 Transceiver, and closely
coupled local memory and microprocessor, is intended
to provide the user with a complete interface module for
an Ethernet network. The Am79C90 is designed using
a scalable CMOS technology and is compatible with a
variety of microprocessors. On-board DMA, advanced
buffer management, and extensive error reporting and
diagnostics facilitate design and improve system
performance.
BLOCK DIAGRAM
INTR
HOLD
HLDA
ALE/AS
CS
ADR
DAS
DALO
DALI
READ
BM0/BYTE
BM1/BUSAKO
READY
RESET
Parallel
Bus
Interface
DMA/Data
Path Control
Microprogram
Store
C-LANCE/
CPU
Control
Bus
Interface
Station
Address
Detection
Retry
Logic
Serial I/O
Interface
A23:16
RX
RCLK
TX
TCLK
CLSN
TENA
RENA
DAL15:0
L
17881C-1
A
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| AM79C90PC | CMOS Local Area Network Controller for Ethernet (C-LANCE) |
| AM79C90PCTR | CMOS Local Area Network Controller for Ethernet (C-LANCE) |
| AM79C930 | PCnet-Mobile Single-Chip Wireless LAN Media Access Controller |
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| AM79C900 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| AM79C900AJC | 制造商:Advanced Micro Devices 功能描述: |
| AM79C900JC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller |
| AM79C901 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AMD’s Am79C901 HomePNA-Compliant Device with Motorola’s MC68360. MPC860. MPC850. and MPC8260? - (PDF) |
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