Specifications For Intel Lntellec 8/Mds Data Files - Data I/O 298 Manual

, INTEL INTELLEC 8/1',,'IDS FORMAT, CODE 83
Intel data records begin with a 9-character prefix and end
with a 2-chaiacter suffix. The byte count must equal the
number of data bytes in the record.
Figure A-12 simulates a series of valid data records. Each
INPUT
DATA RECORD
~
START CHARACTER
B BC = Byte Count. The hexadecimal number of data bytes
C in the record
A
A AAAA =Address of first data byte in record. AAAA
in
A hexadecimal notation only
A
T
T
H
H
n
TT= Record Type (00)
HH = One data byte in hexadecimal notation
ITJ
CC= Checksum. Negation (two's complement) of binary
summation i>f preceding bytes in record (including byte
count, address, and data bytes) in hexadecimal notation
H
This space can be used for iine feed, carriage return or
~
oomm'""·
LEGEND
BC
AAAA
TT
H
cc
= Start Character
= Byte Count (Data Bytes/Record)
=Address Field
= Record Type
=One Hexadecimal Digit (0·9, A-F)
= Checksum of Record
record begins with a colon, which is fo!!owed by a
2-character byte count. The
4
digits following the byte
count give the address of the first data byte.
Each data byte is represented by 2 hex digits; the number
of data bytes in each record must equal the byte count.
END-OF-FILE RECORD
B
c
A
A
A
A
T
T
START CHARACTER
Byte Count. BC= 00 in End-of-File Record
Address
TT = Record Type
(01)
Checksum
f~
............ . . . . .
VUll""UI
NOTES
1) Number of bytes per record is variable. See Table 3· 1.
2)
Each line ends with nonprinting line feed, carriage return
and nulls.
2 Hex characters= 1 byte Data Records
:BCAAAATTHHHHHHHH~HHHHHHHHHHHHHHHHHHHHCC'\..~
:BCAAAATTHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHC~ l~
:BCAAAATTHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCC
: BCAAAATTFF
Figure A-12. Specifications for Intel lntellec 8/MDS Data Files
A-11
10-990-0013