Agilent Technologies 8712ET User's Handbook Supplement

HP IBASIC Supplement 8-7
Interfacing with External Devices
Communication with Devices
Table 8-1 Writable Ports [I=WRITEIO(A,B)]
IO Type
Port,
Register,
Data
Description
WRITEIO 15,0;A Outputs 8-bit data to the Cent_DO through D7 lines of the
Centronics port. Cent_DO is the least significant bit, Cent_D7 is
the most significant bit. Sets Printer_select signal high
(de-select). Checks Centronics status lines for the following:
• OUT OF PAPER
• PRINTER NOT ON LINE
• BUSY
• ACKNOWLEDGE
WRITEIO 15,1;A Sets/clears the “user” bit according to the least significant bit of
A. A least significant bit equal to 1 sets the user bit high. A least
significant bit of 0 clears the user bit.
WRITEIO 15,2;A Sets/clears the limit pass/fail bit according to the least significant
bit of A. A least significant bit equal to 1 sets the pass/fail bit
high. A least significant bit of 0 clears the pass/fail bit.
WRITEIO 15,3;A Outputs 8-bit data to the Cent_D0 through D7 lines of the
Centronics port. Cent_D0 is the least significant bit, Cent_D7 is
the most significant bit. Sets Printer_select signal high
(de-select). Does not check Centronics status lines.
WRITEIO 9,0;A Outputs a byte to the serial port. The byte is output serially
according to the configuration for the serial port. (See above.)

Agilent Technologies 8712ET Specifications

General

Brand	Agilent Technologies
Model	8712ET
Category	Measuring Instruments
Language	English