P89LPC9211 datasheet(44/74 Pages) NXP

Part #	P89LPC9211

Description	8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB 3 V byte-erasable flash with 8-bit ADC

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Manufacturer	NXP [NXP Semiconductors]

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44 / 74 page

P89LPC92X1_1

Preliminary data sheet

Rev. 01 — 16 April 2009

44 of 74

NXP Semiconductors

P89LPC9201/9211/922A1/9241/9251

8-bit microcontroller with 8-bit ADC

programming mechanisms. The P89LPC9201/9211/922A1/9241/9251 uses VDD as the

supply voltage to perform the Program/Erase algorithms. When voltage supply is lower

than 2.4 V, the BOD FLASH is tripped and ﬂash erase/program is blocked.

7.28.2 Features

• Programming and erase over the full operating voltage range.

• Byte erase allows code memory to be used for data storage.

• Read/Programming/Erase using ISP/IAP/ICP.

• Internal ﬁxed boot ROM, containing low-level IAP routines available to user code.

• Default loader providing ISP via the serial port, located in upper end of user program

memory.

• Boot vector allows user-provided ﬂash loader code to reside anywhere in the ﬂash

memory space, providing ﬂexibility to the user.

• Any ﬂash program/erase operation in 2 ms.

• Programming with industry-standard commercial programmers.

• Programmable security for the code in the ﬂash for each sector.

• 100,000 typical erase/program cycles for each byte.

• 10 year minimum data retention.

7.28.3 Flash organization

The program memory consists of two/four/eight 1 kB sectors on the

P89LPC9201/9211/922A1/9241/9251 devices. Each sector can be further divided into

64-byte pages. In addition to sector erase, page erase, and byte erase, a 64-byte page

register is included which allows from 1 byte to 64 bytes of a given page to be

programmed at the same time, substantially reducing overall programming time.

7.28.4 Using ﬂash as data storage

The ﬂash code memory array of this device supports individual byte erasing and

programming. Any byte in the code memory array may be read using the MOVC

instruction, provided that the sector containing the byte has not been secured (a MOVC

instruction is not allowed to read code memory contents of a secured sector). Thus any

byte in a non-secured sector may be used for non-volatile data storage.

7.28.5 Flash programming and erasing

Four different methods of erasing or programming of the ﬂash are available. The ﬂash may

be programmed or erased in the end-user application (IAP) under control of the

application’s ﬁrmware. Another option is to use the ICP mechanism. This ICP system

provides for programming through a serial clock/serial data interface. As shipped from the

factory, the upper 512 bytes of user code space contains a serial ISP routine allowing for

the device to be programmed in circuit through the serial port. The ﬂash may also be

programmed or erased using a commercially available EPROM programmer which

supports this device. This device does not provide for direct veriﬁcation of code memory

contents. Instead, this device provides a 32-bit CRC result on either a sector or the entire

user code space.

Remark: When voltage supply is lower than 2.4 V, the BOD FLASH is tripped and ﬂash

erase/program is blocked.

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