C508 datasheet(21/93 Pages) INFINEON

21 / 93 page

C508

Data Sheet

2000-08

Enhanced Hooks Emulation Concept

The Enhanced Hooks Emulation Concept of the C500 microcontroller family is a new,

innovative way to control the execution of C500 MCUs and to gain extensive information

on the internal operation of the controllers. Emulation of on-chip ROM based programs

is possible, too.

Each C500 production chip has built-in logic for the support of the Enhanced Hooks

Emulation Concept. Therefore, no costly bond-out chips are necessary for emulation.

This also ensure that emulation and production chips are identical.

The Enhanced Hooks TechnologyTM, which requires embedded logic in the C500 allows

the C500 when used with an EH-IC, to function in a manner similar to a bond-out chip.

This simplifies the design and reduces costs of an ICE-system. ICE-systems using an

EH-IC and a compatible C500 are able to emulate all operating modes of the different

versions of the C500 microcontrollers. This includes emulation of ROM, ROM with code

rollover and ROMless modes of operation. It is also able to operate in single step mode

and to read the SFRs after a break.

Figure 9

Basic C500 MCU Enhanced Hooks Concept Configuration

Port 0, port 2 and some of the control lines of the C500 based MCU are used by

Enhanced Hooks Emulation Concept to control the operation of the device during

emulation and to transfer information about the program execution and data transfer

between the external emulation hardware (ICE-system) and the C500 MCU.

MCS02647

SYSCON

PCON

TCON

RESET

PSEN

ALE

Port 0

Port 2

I/O Ports

Optional

Port 3

Port 1

C500

MCU

Interface Circuit

Enhanced Hooks

RPort 0

RPort 2

RTCON

RPCON

RSYSCON

TEA

TALE TPSEN

EH-IC

Target System Interface

ICE-System Interface

to Emulation Hardware

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