P89V660 datasheet(21/89 Pages) NXP

21 / 89 page

P89V660_662_664_1

Product data sheet

Rev. 01 — 2 May 2007

21 of 89

NXP Semiconductors

P89V660/662/664

80C51 with 512 B/1 kB/2 kB RAM, dual I2C-bus, SPI

Miscellaneous Write Functions

:nnxxxx03ffssddcc

Where:

nn = number of bytes in the record

xxxx = required ﬁeld but value is a ‘don’t care’

ff = subfunction code

ss = selection code

dd = data (if needed)

cc = checksum

Subfunction code = 01 (Erase Blocks)

ff=01

ss = block code, as shown below

block 0, 0k to 8k, 00H

block 1, 8k to 16k, 20H

block 0, 16k to 32k, 40H

block 0, 32k to 48k, 80H

block 0, 48k to 64k, C0H

Subfunction code = 04 (Erase Boot vector and Status Bit)

ff=04

ss = don’t care

Subfunction code = 05 (Program security bits)

ff=05

ss = 00 program security bit 1

ss = 01 program security bit 2

ss = 02 program security bit 3

Subfunction code = 06 (Program Status bit, Boot vector, 6x/12x bit)

ff=06

dd = data (for Boot vector)

ss = 00 program Status bit

ss = 01 program Boot vector

ss = 02 program 6x/12x bit

Subfunction code = 07 (Chip Erase)

Erases code memory and security bits, programs default Boot vector and

Status bit

ff=07

Subfunction code = 08 (Erase page, 128 B)

ff=08

ss = high byte of page address (A[15:8])

dd = low byte of page address (A[7:0])

Example:

:0300000308E000F2 (erase page at E000H)

Table 11.

ISP hex record formats …continued

Record type

Command/data function

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