p89lpc932ba NXP Semiconductors, p89lpc932ba Datasheet - Page 43

• Manufacturer Part Number: p89lpc932ba
• Description: P89lpc932 8-bit Microcontroller With Accelerated Two-clock 80c51 Core 8 Kb Flash With 512-byte Data Eeprom And 768-byte Ram
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 12379
Product data
8.28 User configuration bytes
8.29 User sector security bytes
for the Boot Vector (1EH) is changed, it will no longer point to the factory
pre-programmed ISP boot loader code. If this happens, the only way it is possible to
change the contents of the Boot Vector is through the parallel programming method,
provided that the end user application does not contain a customized loader that
provides for erasing and reprogramming of the Boot Vector and Boot Status Bit. After
programming the Flash, the status byte should be programmed to zero in order to
allow execution of the user’s application code beginning at address 0000H.
In-System Programming (ISP):
removing the microcontroller from the system. The In-System Programming facility
consists of a series of internal hardware resources coupled with internal firmware to
facilitate remote programming of the P89LPC932 through the serial port. This
firmware is provided by Philips and embedded within each P89LPC932 device. The
Philips In-System Programming facility has made in-system programming in an
embedded application possible with a minimum of additional expense in components
and circuit board area. The ISP function uses five pins (V
RST). Only a small connector needs to be available to interface your application to an
external circuit in order to use this feature.
In-Application Programming (IAP):
are available for use by an application program to permit selective erasing and
programming of Flash sectors, pages, security bits, configuration bytes, and device
identification. All calls are made through a common interface, PGM_MTP. The
programming functions are selected by setting up the microcontroller’s registers
before making a call to PGM_MTP at FF00H.
A number of user-configurable features of the P89LPC932 must be defined at
power-up and therefore cannot be set by the program after start of execution. These
features are configured through the use of the Flash byte UCFG1. Please see the
P89LPC932 User’s Manual for additional details.
There are eight User Sector Security Bytes, each corresponding to one sector.
Please see the P89LPC932 User’s Manual for additional details.
Rev. 04 — 06 January 2004
8-bit microcontroller with accelerated two-clock 80C51 core
In-System Programming is performed without
Several In-Application Programming (IAP) calls
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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P89LPC932
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