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P89C51RB2BA датащи(PDF) 44 Page - NXP Semiconductors

номер детали P89C51RB2BA
подробное описание детали  80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
PDF  52 Pages
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производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P89C51RB2BA датащи(HTML) 44 Page - NXP Semiconductors

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Philips Semiconductors
Preliminary specification
89C51RB2/89C51RC2/
89C51RD2
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
1999 Sep 23
44
RECORD TYPE
COMMAND/DATA FUNCTION
05
Miscellaneous Read Functions
General Format of Function 05
:02xxxx05ffsscc
Where:
02
=
number of bytes (hex) in record
xxxx
=
required field, but value is a “don’t care”
05
=
“Miscellaneous Read” function code
ffss
=
subfunction and selection code
0000 = read signature byte – manufacturer id (15H)
0001 = read signature byte – device id # 1
(C2H)
0002 = read signature byte – device id # 2
0700 = read security bits
0701 = read status byte
0702 = read boot vector
cc
= checksum
Example:
:020000050001F8
read signature byte – device id # 1
06
Direct Load of Baud Rate
General Format of Function 06
:02xxxx06hhllcc
Where:
02
=
number of bytes (hex) in record
xxxx
=
required field, but value is a “don’t care”
06
=
”Direct Load of Baud Rate” function code
hh
=
high byte of Timer 2
ll
=
low byte of Timer 2
cc
=
checksum
Example:
:02000006F50003



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