Страница 1 мировой engineering стандарты общая спецификация

n
umber 
o
f 
b
ytes to be sent starting with the
address of the 2
nd 
memory region.
U
:
:
:
U
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25.06.2020
WORLDWIDE ENGINEERING STANDARDS General Motors Local Area Network Enhanced Diagnostic Test Mode Specification
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Page 264
GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
© Copyright 2010 General Motors All Rights Reserved
February 2010
Page 264 of 336
Offset
Number
of Bytes
Name
Description
Cvt
End of
previous
field
+ 1
4
PMA#n
This optional field is present if the PMA bit of the HFI is set to
a one and the NOAR field indicates that there are (n)
address regions (where n > 2) contained within the module.
This field would contain the starting address of the n
th
memory region.
U
End of
previous
field
+ 1
4
NOB#n
This optional field contains the 
n
umber 
o
f 
b
ytes to be sent
starting with the address of the n
th 
memory region.
U
End of
previous
field
+ 1
2
NOAM
The 
N
umber 
O
f 
A
dditional 
M
odules optional field is only
present if this header includes the address information of all
software/calibration modules to be downloaded into the ECU
(MPFH and PMA bits of HFI must be a “1”). This 2-byte value
represents the number of additional calibration modules for
which this header includes the address information.
U
End of
previous
field
+ 1
2
DCID_am1 This optional field is present if the H_N
Size 
bit of the HFI is 1,
and the DCID bit in the HFI field is also a 1. This field is two
bytes in length and contains a Data Compatibility identifier
value for the first additional module. This value is compared
by the programming executive against a corresponding value
in the calibration data file header (DCID_) to ensure that
there is no mismatch between the calibration file and the
operational software.
U
End of
previous
field
+ 1
2
NOAR_am1 This field is optional and is only present if the NOAM field is
≥ 1. The data represents the number of address regions of
the first additional module.
U
End of
previous
field
+ 1
4
PMA#1_am1 This optional field contains the starting