Loader Debugger Protocol
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Auteur(s) :
C. Welles,
W. Milliken
Classé sous :
Ldp
RFC-909 July 1984
instead of three words, as shown here. In both addressing modes,
descriptors are three words and offsets are two words.
6.1 WRITE Command
The WRITE command is used to send octets of data from the
host to the target. This command specifies the address in the
target where the data is to be stored, followed by a stream of
data octets. If the data stream contains an odd number of
octets, then a null octet is appended so that the next command,
if any, will begin on an even octet. Since LDP must observe
message size limitations imposed by the underlying transport
layer, a single logical write may need to be broken up into
multiple WRITEs in separate transport messages.
0 0 0 1 1
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
+---------------+---------------+
0 | Command Length |
+---------------+---------------+
1 | DATA_TRANSFER | WRITE |
+---------------+---------------+
2 | |
+-- Target --+
3 | Start |
+-- Address --+
4 | |
+---------------+---------------+
5 | Data Octet | Data Octet |
+---------------+---------------+
*
*
*
+---------------+---------------+
n | Data Octet | Data or Null |
+---------------+---------------+
WRITE Command Format
Figure 26
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