P89CV51RB2_09 datasheet(21/76 Pages) NXP

21 / 76 page

P89CV51RB2_RC2_RD2_3

Product data sheet

Rev. 03 — 25 August 2009

21 of 76

NXP Semiconductors

P89CV51RB2/RC2/RD2

80C51 with 1 kB RAM, 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 = 0C (erase 4 kB blocks)

ff=0C

ss = block code, as shown below:

block 0, 0 kB to 4 kB, 00H

block 1, 4 kB to 8 kB, 10H

block 2, 8 kB to 12 kB, 20H

block 3, 12 kB to 16 kB, 30H

block 4, 16 kB to 20 kB, 40H (only available on P89CV51RC2/RD2)

block 5, 20 kB to 24 kB, 50H (only available on P89CV51RC2/RD2)

block 6, 24 kB to 28 kB, 60H (only available on P89CV51RC2/RD2)

block 7, 28 kB to 32 kB, 70H (only available on P89CV51RC2/RD2)

block 8, 32 kB to 36 kB, 80H (only available on P89CV51RD2)

block 9, 36 kB to 40 kB, 90H (only available on P89CV51RD2)

block 10, 40 kB to 44 kB, A0H (only available on P89CV51RD2)

block 11, 44 kB to 48 kB, B0H (only available on P89CV51RD2)

block 12, 48 kB to 52 kB, C0H (only available on P89CV51RD2)

block 13, 52 kB to 56 kB, D0H (only available on P89CV51RD2)

block 14, 56 kB to 60 kB, E0H (only available on P89CV51RD2)

block 15, 60 kB to 64 kB, F0H (only available on P89CV51RD2)

Example:

:020000030C20CF (erase 4 kB block #2)

Table 11.

ISP Hex record formats …continued

Record type

Command/data function

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