參數(shù)資料
型號： P89C51RC2
廠商： NXP Semiconductors N.V.
元件分類： 8位微控制器
英文描述： 80C51 8-bit Flash microcontroller family
中文描述： 80C51的8位閃存微控制器系列
文件頁數(shù)： 48/68頁
文件大小： 404K
代理商： P89C51RC2
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
48
Table 9.
Intel-Hex Records Used by In-System Programming
RECORD TYPE
COMMAND/DATA FUNCTION
00
Program Data
:nnaaaa00dd....ddcc
Where:
nn
aaaa
dd....dd
cc
Example:
:10008000AF5F67F0602703E0322CFA92007780C3FD
= number of bytes (hex) in record
= memory address of first byte in record
= data bytes
= checksum
01
End of File (EOF), no operation
:xxxxxx01cc
Where:
xxxxxx
cc
Example:
:00000001FF
= required field, but value is a “don’t care”
= checksum
03
Miscellaneous Write Functions
:nnxxxx03ffssddcc
Where:
nn
xxxx
03
ff
ss
dd
cc
= number of bytes (hex) in record
= 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
block 2, 16k to 32k, 40H
block 3, 32k to 48k, 80H
block 4, 48k to 64k, C0H
Example:
:0200000301C03A erase block 4
(RB2, RC2, RD2)
(RC2, RD2)
(RD2 only)
(RD2 only)
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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