P89LPC970FDH datasheet(10/67 Pages) NXP

Part #	P89LPC970FDH

Description	8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB wide-voltage byte-erasable flash

PDF	67 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

Logo

10 / 67 page

P89LPC97X

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 3 — 8 June 2010

10 of 66

NXP Semiconductors

P89LPC970/971/972

8-bit microcontroller with accelerated two-clock 80C51 core

Functional description

Remark: Please refer to the P89LPC970/971/972 User manual for a more detailed

functional description.

7.1 Special function registers

Remark: SFR accesses are restricted in the following ways:

• User must not attempt to access any SFR locations not defined.

• Accesses to any defined SFR locations must be strictly for the functions for the SFRs.

• SFR bits labeled ‘-’, ‘0’ or ‘1’ can only be written and read as follows:

– ‘-’ Unless otherwise specified, must be written with ‘0’, but can return any value

when read (even if it was written with ‘0’). It is a reserved bit and may be used in

future derivatives.

– ‘0’ must be written with ‘0’, and will return a ‘0’ when read.

– ‘1’ must be written with ‘1’, and will return a ‘1’ when read.

P89LPC970FDH Datasheet(PDF) 10 Page - NXP Semiconductors