Architectural Overview
Am186™CC/CH/CU Microcontrollers User’s Manual
1-13
1.5
APPLICATIONS
The Am186CC/CH/CU microcontrollers, with their integrated communications features,
provide highly integrated, cost-effective solutions for a wide range of telecommunications
and networking applications.
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ISDN Modems and Terminal Adapters: Next-generation ISDN equipment requires
USB (or High-speed UART capability), in addition to three channels of HDLC.
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Low-End Routers: ISDN to Ethernet-based personal routers, often used for
connections in Small Office/Home Office (SOHO) environments, require three channels
of HDLC, as well as the high performance of a 16-bit controller.
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Linecard Applications: Typically, linecards used in Central Offices (COs), PABX
equipment, and other telephony applications require one or two channels of HDLC.
Linecard manufacturers are moving to more lines per card for analog POTS as a means
of cost reduction. This, and digital linecards for support of ISDN, often requires higher
performance than existing 8-bit devices can offer. The Am186CC and Am186CH
microcontrollers are ideal solutions for these applications because they integrate much
of the necessary glue logic while providing higher performance.
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xDSL Applications: Today’s xDSL applications, such as high-speed ADSL modems,
require data handling of 2 Mbit/s or greater and can take advantage of the USB interface
for easy connectivity to the PC.
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Digital Corded Phones: Typical digital telephone applications use up to three channels
of HDLC and may use USB for merged PC telephony applications.
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Industrial Control: Embedded x86 processors have long been used in the industrial
control market. These applications often require a robust, high-performance processor
solution with the capability to easily communicate with other parts of a system. The
Am186CC and Am186CH microcontrollers provide numerous interfaces to achieve this
communication, including the SSI interface, high-speed UART, and the HDLC channels,
which also can be used to create a multidrop backplane.
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USB Peripheral Devices: These devices will become more common as the PC market
embraces the USB protocol specified by the Microsoft™ Windows 98 operating system.
In addition to implementing communications device class systems such as an ISDN
terminal adapter, the USB peripheral controller makes the Am186CC and Am186CU
USB microcontrollers suitable for certain PC desktop applications such as a USB camera
interface, ink-jet printers, and scanners.
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General Communications Applications: The Am186CC/CH/CU microcontrollers will
also find a home in general embedded applications, because many devices will
incorporate communications capability in the future. These microcontrollers are
especially attractive for 186 designs adding HDLC, USB, or both.
The block diagrams beginning on page 1-5 show some typical designs. Figure 1-4 shows
an ISDN terminal adapter. Figure 1-5 shows a low-end router. Figure 1-6 shows a 32-
channel linecard.
The ISDN terminal adapter features an S/T or U interface and either a high-speed UART
or USB connection for attaching the modem to the PC.
The ISDN-to-Ethernet low-end router features an S/T or U interface, two POTS lines, and
a 10-Mbit/s connection to the PC.
The 32-channel linecard design demonstrates a linecard application where 32 lines
terminate on the linecard.
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Summary of Contents for Am186 CC
Page 1: ...Am186 CC CH CU Microcontrollers User s Manual Order 21914B...
Page 4: ...iv Am186 CC CH CU Microcontrollers User s Manual...
Page 18: ...Table of Contents xviii Am186 CC CH CU Microcontrollers User s Manual...
Page 24: ...Introduction xxiv Am186 CC CH CU Microcontrollers User s Manual...
Page 40: ...Architectural Overview 1 16 Am186 CC CH CU Microcontrollers User s Manual...
Page 86: ...System Overview 3 36 Am186 CC CH CU Microcontrollers User s Manual...
Page 92: ...Emulator Support 4 6 Am186 CC CH CU Microcontrollers User s Manual...
Page 112: ...DRAM Controller 6 8 Am186 CC CH CU Microcontrollers User s Manual...
Page 134: ...Interrupts 7 22 Am186 CC CH CU Microcontrollers User s Manual...
Page 186: ...Programmable I O Signals 9 8 Am186 CC CH CU Microcontrollers User s Manual...
Page 200: ...Watchdog Timer 11 6 Am186 CC CH CU Microcontrollers User s Manual...
Page 232: ...Asynchronous Serial Ports UARTs 13 24 Am186 CC CH CU Microcontrollers User s Manual...
Page 242: ...Synchronous Serial Port SSI 14 10 Am186 CC CH CU Microcontrollers User s Manual...
Page 264: ...High Level Data Link Control HDLC 15 22 Am186 CC CH CU Microcontrollers User s Manual...
Page 332: ...Universal Serial Bus USB 18 34 Am186 CC CH CU Microcontrollers User s Manual...
Page 348: ...Register Summary A 16 Am186 CC CH CU Microcontrollers User s Manual...
Page 376: ...Index Index 18 Am186 CC CH CU Microcontrollers User s Manual...