DIGITAL RESEARCH(r) CP/M Plus TM (CP/M Version 3) Operating ...

The DEVICE Command CP/M 3 User's Guide
Table 5-4. DEVICE Options
Option Meaning
XON refers to the XON/XOFF communications protocol.
This protocol uses two special characters in the ASCII
character set called XON and XDFF. XON signals
transmission on, and XOFF signals transmission off.
Before each character is output from the computer to
the peripheral device, the computer checks to see if
there is any incoming data from the peripheral. If the
incoming character is XO,FF, the computer suspends
all further output until it receives an XON from the
device, indicating that the device is again ready to
receive more data.
NOXON indicates no protocol and the computer sends data to
the device whether or not the device is ready to receive
it.
baud-rate is the speed of the device. The system accepts the
following baud rates:
50 75 110 134
150 300 600 1200
1800 2400 3600 4800
7200 9600 19200
Examples: A >DEVICE CONOUT: =L PT ,CRT
A >DEVICE AUXIN: =CRT2 [XON , 9600]
A >DEVICE LST: =NULL
The first example assigns the system console output, CONOUT:, to the
printer, LPT, and the screen, CRT. The second example assigns the
auxiliary logical input device, AUXIN:, to the physical device CRT
using protocol XON/XOFF and sets the transmission rate for the device
at 9600. The third example disconnects the list output logical device,
LST:.
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