XC888LM datasheet(34/144 Pages) INFINEON

Part #	XC888LM

Description	8-Bit Single-Chip Microcontroller

PDF	144 Pages

Scroll/Zoom	100%

Manufacturer	INFINEON [Infineon Technologies AG]

Direct Link	http://www.infineon.com

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34 / 144 page

XC886/888CLM

Functional Description

Data Sheet

V0.9, 2006-12

•

Overwrite the contents of PAGE with the contents of STx, ignoring the value written

to the bit positions of PAGE

(this is done at the end of the interrupt routine to restore the previous page setting

before the interrupt occurred)

Figure 10

Storage Elements for Paging

With this mechanism, a certain number of interrupt routines (or other routines) can

perform page changes without reading and storing the previously used page information.

The use of only write operations makes the system simpler and faster. Consequently,

this mechanism significantly improves the performance of short interrupt routines.

The XC886/888 supports local address extension for:

•

Parallel Ports

•

Analog-to-Digital Converter (ADC)

•

Capture/Compare Unit 6 (CCU6)

•

System Control Registers

PAGE

ST0

ST1

ST2

ST3

value update

from CPU

STNR

XC888LM Datasheet(PDF) 34 Page - Infineon Technologies AG