PM
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3133i User
’s Manual v1.02
Last Revised: Apr. 2023 Page: 45
Copyright © ICP DAS Co., Ltd. All Rights Reserved.
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Download Segment Protocol
ccs
: client command specified
0: download segment request
scs
: server command specified
1: download segment response
seg-data
: It is at most 7 bytes of segment data to be downloaded.
The encoding depends on the type of the data referenced by index and sub-index.
n
: It indicates the number of bytes in seg-data that do not contain segment data.
Bytes [8-n, 7] do not contain segment data. n = 0 if no segment size is indicated.
c
: It indicates whether there are still more segments to be downloaded.
0:more segments to be downloaded.
1:no more segments to be downloaded.
t
: toggle bit
This bit must alternate for each subsequent segment that is downloaded. The first
segment will have the toggle-bit set to 0.The toggle bit will be equal for the request
and the response message.
x
: not used, always 0
reserved
: reserved for further use , always 0