XC2000 datasheet(21/647 Pages) INFINEON

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XC2000 Derivatives

System Units (Vol. 1 of 2)

Introduction

Preliminary

User’s Manual

1-3

V1.0, 2007-06

Intro, V1.0

1.1

Members of the 16-bit Microcontroller Family

The microcontrollers in the Infineon 16-bit family have been designed to meet the high

performance requirements of real-time embedded control applications. The architecture

of this family has been optimized for high instruction throughput and minimized response

time to external stimuli (interrupts). Intelligent peripheral subsystems have been

integrated to reduce the need for CPU intervention to a minimum extent. This also

minimizes the need for communication via the external bus interface. The high flexibility

of this architecture allows to serve the diverse and varying needs of different application

areas such as automotive, industrial control, or data communications.

The core of the 16-bit family has been developed with a modular family concept in mind.

All family members execute an efficient control-optimized instruction set (additional

instructions for members of the second generation). This allows easy and quick

implementation of new family members with different internal memory sizes and

technologies, different sets of on-chip peripherals, and/or different numbers of IO pins.

The XBUS/LXBus concept (internal representation of the external bus interface)

provides a straightforward path for building application-specific derivatives by integrating

application-specific peripheral modules with the standard on-chip peripherals.

As programs for embedded control applications become larger, high level languages are

favored by programmers, because high level language programs are easier to write, to

debug and to maintain. The C166 Family supports this starting with its 2nd generation.

The 80C166-type microcontrollers were the first generation of the 16-bit controller

family. These devices established the C166 architecture.

The C165-type and C167-type devices are members of the second generation of this

family. This second generation is even more powerful due to additional instructions for

HLL support, an increased address space, increased internal RAM, and highly efficient

management of various resources on the external bus.

Enhanced derivatives of this second generation provide more features such as

additional internal high-speed RAM, an integrated CAN-Module, an on-chip PLL, etc.

The design of more efficient systems may require the integration of application-specific

peripherals to boost system performance while minimizing the part count. These efforts

are supported by the XBUS, defined for the Infineon 16-bit microcontrollers (second

generation). The XBUS is an internal representation of the external bus interface which

opens and simplifies the integration of peripherals by standardizing the required

interface. One representative taking advantage of this technology is the integrated CAN

module.

The C165-type devices are reduced functionality versions of the C167 because they do

not have the A/D converter, the CAPCOM units, and the PWM module. This results in a

smaller package, reduced power consumption, and design savings.

The C164-type devices, the C167CS derivatives, and some of the C161-type devices

are further enhanced by a flexible power management and form the third generation of

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