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參數(shù)資料
| 型號： | 21446 |
| 英文描述： | Net186-EVAL-KT? 24.9KB (PDF) |
| 中文描述： | Net186熱解，KT公司？ 24.9KB（PDF格式） |
| 文件頁數(shù)： | 2/3頁 |
| 文件大小： | 24K |
| 代理商： | 21446 |
2
Am186ES
P R E L I M I N A R Y
microprocessors based on the x86 architecture. The E86
family includes the 80C186, 80C188, 80L186, 80L188,
Am186EM, Am188EM, Am186EMLV, and Am188EMLV
microcontrollers, as well as the Am386SX,
Am386DX, and Am486DE microprocessors.
PCnet-ISA II Ethernet Controller
The Am79C961A PCnet-ISA II Ethernet controller, a sin-
gle-chip Ethernet controller, is a highly integrated
mastering
Ethernet controller with a built in ISA bus and
PHY layer (Manchester Encoder/Decoder and 10Base-
T transceiver). The 16-bit ISA interface makes an ideal
straightforward connection to an x186 style local bus.
The PCnet-ISA II has two features which, while not im-
plemented in the Net186, would be very useful for cer-
tain embedded networking control applications: full
duplex operation (making it possible to transmit and re-
ceive packets at the same time, for a combined bidirec-
tional data transfer rate of up to 20 Mbps) and Magic
bus-
Packet Technology (making it possible to remotely wake
up a sleeping system on an Ethernet node).
The PCnet-ISA II is available in either 132-pin PQFP
(plastic quad flat package) or 144-pin TQFP (thin quad
flat package). The Net186 is available in the 144-pin
TQFP, specifically designed to reduce part count and
cost, and to address applications where higher system
throughput is desired.
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 Am79C965 PCnet-32 (for
VL or other general 32-bit bus environments) and the
Am79C970A PCnet-PCI II (for PCI bus environ-
ments). Like the PCnet-ISA II, the PCnet-32 and the
PCnet-PCI II are 10 Mbps Ethernet controllers. The
last member of the PCnet family is the Am79C971
PCnet-
FAST
, a 10/100 Mbps Ethernet controller.
BLOCK DIAGRAM
UCS
186ES
INT0
HOLD
HLDA
ARDY
LCS
MCS0
22V10
EEPROM
WE
OE
29F400
(512Kb)
BYTE
CE
WE
OE
256X16 SRAM
(512Kb)
CE
IOR IOW MEMR MEMW
IRQ
DRQ
DACK
IOCHRDY
AEN
REF
IOCS16
SMEMR
RESET
79C961A
TL7705A
RESET
RES
WR
RD
WHB
WLB
RD
WHB
WLB
MEMWR
MEMRD
10Base-T
N/C
+5 V
20 MHz
4
20, 25
33, 40
MHz
2 Each
RS-232
HLDA
CLKA
LCS
ADX0
WHB
WLB
RD
+5 V
UCS
ADX
DATA
IRQ
HOLD
IOCHRDY
AEN
RCS
SBHE
HLDA
MASTER
MEMWR
RCS
MEMRD
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