P89LPC932A1 データシートの表示（PDF） - NXP Semiconductors.

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P89LPC932A1

8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 512-byte data EEPROM

NXP Semiconductors. 

NXP Semiconductors

P89LPC932A1

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

7. Functional description

Remark: Please refer to the P89LPC932A1 User manual for a more detailed functional

description.

7.1 Special function registers

Remark: Special Function Registers (SFRs) 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 ‘-’, logic 0 or logic 1 can only be written and read as follows:

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

value when read (even if it was written with logic 0). It is a reserved bit and may be

used in future derivatives.

– Logic 0 must be written with logic 0, and will return a logic 0 when read.

– Logic 1 must be written with logic 1, and will return a logic 1 when read.

P89LPC932A1_3

Product data sheet

Rev. 03 — 12 March 2007

© NXP B.V. 2007. All rights reserved.

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