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參數(shù)資料
| 型號(hào)： | 20068 |
| 英文描述： | and Am29243? EH Controller Data Sheet |
| 中文描述： | 和Am29243？高血壓控制器數(shù)據(jù)表 |
| 文件頁數(shù)： | 4/36頁 |
| 文件大?。?/td> | 428K |
| 代理商： | 20068 |
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P R E L I M I N A R Y
4
Am29240 EH Microcontroller Series
GENERAL DESCRIPTION
The Am29240EH microcontroller series is an enhanced
bus-compatible extension of the Am29200
RISC mi-
crocontroller family, with two to four times the perfor-
mance. The Am29240EH microcontroller series
includes the Am29240EH microcontroller, the low-cost
Am29245EH microcontroller, and the Am29243EH data
microcontroller. The on-chip caches, MMU, faster inte-
ger math, and extended DMA addressing capability of
the Am29240EH microcontroller series allow the em-
bedded systems designer to provide increasing levels of
performance and software compatibility throughout a
range of products (see Table 1 on page 6).
Based on a low-voltage CMOS-technology design,
these devices offer a complete set of system peripherals
and interfaces commonly used in embedded applica-
tions. Compared to CISC processors, the Am29240EH
microcontroller series offers better performance, more
efficient use of low-cost memories, lower system cost,
and complete design flexibility for the designer. Coupled
with hardware and software development tools from the
AMD Fusion29K partners, the Am29240EH microcon-
troller series provides the embedded product designer
with the cost and performance edge required by today’s
marketplace.
For a complete description of the technical features, on-
chip peripherals, programming interface, register set,
and instruction set, please refer to the Am29240EH,
Am29245EH, and Am29243EH RISC Microcontrollers
User’s Manual (order #17741).
Am29240EH Microcontroller
For general-purpose embedded applications, such as
mass-storage controllers, communications, digital sig-
nal processing, networking, industrial control, pen-
based systems, and multimedia, the Am29240EH
microcontroller provides a high-performance solution
with a low total-system cost. The memory interface of
the Am29240EH microcontroller provides even faster
direct memory access than the Am29200 microcontrol-
ler. This performance improvement minimizes the effect
of memory latency, allowing designers to use low-cost
memory with simpler memory designs. On-chip instruc-
tion and data caches provide even better performance
for time-critical code.
Other on-chip functions include: a ROM controller,
DRAM controller, peripheral interface adapter control-
ler, DMA controller, programmable I/O port, parallel port
controller, serial ports, and an interrupt controller.
Am29245EH Microcontroller
The low-cost Am29245EH microcontroller is designed
for embedded applications in which cost and space
constraints, along with increased performance require-
ments, are primary considerations.
The Am29245EH microcontroller also provides an easy
upgrade path for Am29200, Am29202
, and
Am29205
microcontroller-based products.
Am29243EH Microcontroller
With DRAM parity support and a full MMU, the
Am29243EH data microcontroller is recommended for
communications applications that require high-speed
data movement and fast protocol processing in a fault-
tolerant environment.
Both the Am29243EH and Am29240EH microcontrol-
lers support fly-by DMA at 100 Mbytes/s for LANs and
switching applications, and a two-cycle Multiply Accu-
mulate function for DSP applications. The low power re-
quirements make either microcontroller a good choice
for field-deployed devices.
Development Support Products
The Fusion29K Program of Partnerships for Application
Solutions provides the user with a vast array of products
designed to meet critical time-to-market needs. Prod-
ucts/solutions available from the AMD Fusion29K part-
ners include the following:
Optimizing compilers for common high-level
languages
Assembler and utility packages
Source- and assembly-level software debuggers
Target-resident development monitors
Simulators
Execution boards
Hardware development tools
Silicon products
Board-level products
Laser-printer solutions
Multiuser, kernel, and real-time operating systems
Graphics solutions
Networking and communication solutions
Manufacturing support
Custom software consulting, support, and training
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