P89C51RC2BASLASH01 datasheet(48/68 Pages) PHILIPS

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Philips Semiconductors

Preliminary data

P89C51RA2/RB2/RC2/RD2xx

80C51 8-bit Flash microcontroller family

8KB/16KB/32KB/64KB ISP/IAP Flash with 512B/512B/512B/1KB RAM

2002 Jul 18

Table 9.

Intel-Hex Records Used by In-System Programming

RECORD TYPE

COMMAND/DATA FUNCTION

Program Data

:nnaaaa00dd....ddcc

Where:

= number of bytes (hex) in record

aaaa

= memory address of first byte in record

dd....dd

= data bytes

= checksum

Example:

:10008000AF5F67F0602703E0322CFA92007780C3FD

End of File (EOF), no operation

:xxxxxx01cc

Where:

xxxxxx

= required field, but value is a “don’t care”

= checksum

Example:

:00000001FF

Miscellaneous Write Functions

:nnxxxx03ffssddcc

Where:

= number of bytes (hex) in record

xxxx

= required field, but value is a “don’t care”

= Write Function

= subfunction code

= selection code

= data input (as needed)

= checksum

Subfunction Code = 01 (Erase 8K/16K Code Blocks)

ff = 01

ss = block code as shown below:

block 0,

0k to

8k, 00H

block 1,

8k to 16k, 20H

(RB2, RC2, RD2)

block 2, 16k to 32k, 40H

(RC2, RD2)

block 3, 32k to 48k, 80H

(RD2 only)

block 4, 48k to 64k, C0H

(RD2 only)

Example:

:0200000301C03A

erase block 4

Subfunction Code = 04 (Erase Boot Vector and Status Byte)

ff = 04

ss = don’t care

Example:

:020000030400F7

erase boot vector and status byte

Subfunction Code = 05 (Program Security Bits)

ff = 05

ss = 00 program security bit 1

(inhibit writing to Flash)

01 program security bit 2

(inhibit Flash verify)

02 program security bit 3

(disable external memory)

Example:

:020000030501F5

program security bit 2

Subfunction Code = 06 (Program Status Byte or Boot Vector)

ff = 06

ss = 00 program status byte

01 program boot vector

02 program FX2 bit (dd = 80)

dd = data

Example 1:

:030000030601FCF7

program boot vector with 0FCH

Example 2:

:0300000306028072

program FX2 bit (select 12-clock mode)

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