參數(shù)資料
型號(hào)： AM79C90JC
廠商： ADVANCED MICRO DEVICES INC
元件分類： 微控制器/微處理器
英文描述： CMOS Local Area Network Controller for Ethernet (C-LANCE)
中文描述： 1 CHANNEL(S), LOCAL AREA NETWORK CONTROLLER, PQCC68
封裝： PLASTIC, LCC-68
文件頁(yè)數(shù)： 8/62頁(yè)
文件大?。?/td> 437K
代理商： AM79C90JC
AMD
P R E L I M I N A R Y
8
Am79C90
FUNCTIONAL DESCRIPTION
The parallel interface of the CMOS Local Area Network
Controller for Ethernet (C-LANCE) has been designed
to be “friendly” or easy to interface to a variety of popular
microprocessors. These microprocessors include the
Am29000, 80x86, 680x0, Z8000 and LSI-11. The
C-LANCE has a 24-bit wide linear address space when
it is in the Bus Master Mode. A programmable mode of
operation allows byte addressing in one of two ways:
aByte/Word control signal compatible with the 80x86
and Z8000 or an Upper Data Strobe and Lower Data
Strobe signal compatible with microprocessors such as
the 68000. A programmable polarity on the Address
Strobe signal eliminates the need for external logic. The
C-LANCE interfaces with both multiplexed and de-
multiplexed data busses and features control signals for
address/data bus transceivers. The C-LANCE is pin-for-
pin compatible with AMD’s LANCE device (Am7990).
Please refer to Appendix B for a complete comparison
between the C-LANCE and LANCE devices.
A16–A23
DAL0–DAL15
CPU
ALE
Buffer
Buffer
Data and
Address
Bits 0–15
Address
Bits
16–23
Control
Decoder
Buffer
Latch
DAL0–DAL15 A16–A23 Control
ALE
A16–A23
C-LANCE
ALE
ADR
CS
DAL0 – DAL15
A16–A23
17881B-5
Figure 1. C-LANCE/CPU Interfacing Multiplexed Bus
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79C90JC-G 制造商:Rochester Electronics LLC 功能描述:
AM79C90JCTR 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:CMOS Local Area Network Controller for Ethernet (C-LANCE)
AM79C90PC 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:CMOS Local Area Network Controller for Ethernet (C-LANCE)
AM79C90PCB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller
AM79C90PCTR 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:CMOS Local Area Network Controller for Ethernet (C-LANCE)
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