980
Serial Communications Instructions Section 3-24
Inner Board Area (CS Series Only)
CPU Bus Unit Area
n = 1500 + 25 x unit number
Examples When CIO 0000 is ON in the following example, communications sequence
No. 101 (0065 hex) will be executed as long as the Communications Port
Enabled Flag for port 7 (A20207) is ON and the Port 1 Protocol Macro Execu-
tion Flag (CIO 190915) is OFF.
If an operand is specified for the symbol in a send message, 2 words of data
starting from D00101 will be used as the send area (because the contents of
D00100 is #0003).
If an operand is specified for the symbol in a receive message, 2 words of
data will be stored starting from D00201 and the number of words received +1
will be written to D00200.
Name Address Contents
Port 1 Protocol Macro Exe-
cution Flag
CIO 190915 ON when PMCR(260) is executed. The
flag will remain OFF if execution fails.
The flag will turn OFF when the com-
munications sequence has been com-
pleted (either an end or abort).
Port 2 Protocol Macro Exe-
cution Flag
CIO 191915
Name Address Contents
Port 1 Protocol Macro
Execution Flag
Bit 15 of
CIO n+9
ON when PMCR(260) is executed. The flag
will remain OFF if execution fails. The flag
will turn OFF when the communications
sequence has been completed (either an
end or abort).
Port 2 Protocol Macro
Execution Flag
Bit 15 of
CIO n+19
To Next Page
Loading...
Need help?
General
