ZiLOG System 8000 User Manual page 39

USER
29
<data(2»:
Zilog USER
is the value of byte data
(represented in two ASCII charac-
ters)
<checksum2(2»: is the checksum for the data por-
tion of the record (two ASCII char-
acters)
<carriage return>: indicates the end of the record
No segment information is transferred. All aownloaded data
is loaded into segment 0 with the LOAD command. Data for
segments other than 0 must be transferred by the HOVE com-
mand.
LAST RECORD
I
<entry address(4» 00 <checksum(4» <carraige return>
where:
<entry address>:
<checksum>:
is the starting execution address
for the program
is the checksum for the
address
NOTE
entry
A record with 00 in the count field i~dicates the
end of lead data.
RECORD WITH ERROR HESSAGE
If either the local or remote system has to abort the load
process, it sends a record of the form:
II
<error messages in ASCII text> <carriage return>
ACKNOWLEDGE
During the loading process, after each record is received
frornthe remote system, an acknowledge (ASCII 0) is sent
when the checksum values are verified. If a nonacknowledge
(ASCII 7) is received, the remote system attempts to load
the same data record up to ten times. After the tenth try,
the Monitor Program returns to Moniter Mode for the next
command. An abort-acknowledge (ASCII 9) is sent to the
Zilog
29