P89LV51RB2_RC2_RD2_5 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 05 — 15 December 2009 24 of 76
NXP Semiconductors
P89LV51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
05 Miscellaneous Read functions
:02xxxx05ffsscc
Where:
02 = number of bytes in the record
xxxx = required field but value is a ‘don’t care’
05 = function code for misc read
ffss = subfunction and selection code
0000 = read manufacturer id
0001 = read device id 1
0002 = read boot code version
0700 = read security bit (00 SoftICE serial number match 0 SB 0 Double Clock)
cc = checksum
Example:
:020000050000F9 (display manufacturer id)
06 Direct load of baud rate
:02xxxx06HHLLcc
Where:
02 = number of bytes in the record
xxxx = required field but value is a ‘don’t care’
HH = high byte of timer
LL = low byte of timer
cc = checksum
Example:
:02000006FFFFcc (load T2 = FFFF)
07 Reset serial number, erase user code, clear SoftICE mode
:xxxxxx07cc
Where:
xxxxxx = required field but value is a ‘don’t care’
07 = reset serial number function
cc = checksum
Example:
:00000007F9
08 Verify serial number
:nnxxxx08ss..sscc
Where:
xxxxxx = required field but value is a ‘don’t care’
08 = verify serial number function
ss..ss = serial number contents
cc = checksum
Example:
:03000008010203EF (verify serial number = 010203)
Table 12. ISP hex record formats
…continued
Record type Command/data function
