User`s manual

143
CHAPTER 3 COMMUNICATIONS BY THE MODEM FUNCTION
3
3.4 Start-up of the Modem Function
• An example of a sequence program used for writing (registering) of data for connection is shown below.
• Example of writing data for connection to the registration number 8002H area
X1E: ready signal
Turns the ready flag ON
Sets the line type to tone
X1F: WDT error signal
Connection data registration
command
Set the number of registration
data bytes
Clear the data storage device
for connection
Set the pager receiver designation
(Notification is not executed)
Set the telephone number
to be connected
Set the external line dialing
number (0)
Writes the connection data
in the buffer memory
Sets the connection data
registration completion flag
80 80D0
D1
D22
1B29H
1B2AH
1B3FH
D23
D40
1B40H
1B51H
Data register
(Connection data)
Number of registration
data bytes
(Item name) (Address)
Area for registration
No. 8002H
Buffer memory
Data for connection
(Data for notification)
to
to
to
to
(Connection data)
(Data for notification)