P89LV51RD2BA PHILIPS [NXP Semiconductors], P89LV51RD2BA Datasheet - Page 20

• Manufacturer Part Number: P89LV51RD2BA
• Description: 8-bit 80C51 3 V low power 64 kB Flash microcontroller with 1 kB RAM
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
9397 750 14342
Product data
7.2.1 Flash organization
7.2.2 Boot block (Block 1)
7.2.3 In-System Programming (ISP)
7.2 Flash memory In-Application Programming
Table 10:
Not bit addressable; Reset value 00H
Table 11:
The P89LV51RB2/RC2/RD2 program memory consists of a 16/32/64 kB block. An
In-System Programming (ISP) capability, in a second 8 kB block, is provided to allow
the user code to be programmed in-circuit through the serial port. There are three
methods of erasing or programming of the Flash memory that may be used. First, the
Flash may be programmed or erased in the end-user application by calling low-level
routines through a common entry point (IAP). Second, the on-chip ISP boot loader
may be invoked. This ISP boot loader will, in turn, call low-level routines through the
same common entry point that can be used by the end-user application. Third, the
Flash may be programmed or erased using the parallel method by using a
commercially available EPROM programmer which supports this device.
When the microcontroller programs its own Flash memory, all of the low level details
are handled by code that is contained in Block 1. A user program calls the common
entry point in the Block 1 with appropriate parameters to accomplish the desired
operation. Boot block operations include erase user code, program user code,
program security bits, etc.
A Chip-Erase operation can be performed using a commercially available parallel
programmer. This operation will erase the contents of this Boot Block and it will be
necessary for the user to reprogram this Boot Block (Block 1) with the
Philips-provided ISP/IAP code in order to use the ISP or IAP capabilities of this
device. Contact
device. Questions may be directed to [e-mail].
In-System Programming is performed without 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
Bit
7 to 4
3
2
1
0
Bit
Symbol -
AUXR1 - Auxiliary register 1 (address A2H) bit allocation
AUXR1 - Auxiliary register 1 (address A2H) bit description
Symbol
-
GF2
0
-
DPS
7
http://www.semiconductors.philips.com
Rev. 04 — 02 December 2004
-
6
Description
Reserved for future use. Should be set to ‘0’ by user programs.
General purpose user-defined flag.
This bit contains a hard-wired ‘0’. Allows toggling of the DPS bit by
incrementing AUXR1, without interfering with other bits in the
register.
Reserved for future use. Should be set to ‘0’ by user programs.
Data pointer select. Chooses one of two Data Pointers for use by
the program. See text for details.
-
5
P89LV51RB2/RC2/RD2
-
4
8-bit microcontrollers with 80C51 core
GF2
3
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
to obtain the hex file for this
0
2
-
1
DPS
20 of 77
0