Specifications

CHAPTER 3
LaserWriter Pro Software
68 Setting Serial Communication Parameters
userdiskpercent 3
Setting Serial Communication Parameters 3
The following compatibility operators set Level 2 serial communications parameters.
Serial communications channel (SCC) operator encoding is described in the following
section.
sccbatch 3
sccinteractive 3
Syntax – userdiskpercent int
Definition This operator returns 0. It is not operative in the LaserWriter Pro
printer.
Error stackoverflow
Syntax channel sccbatch baud options
Definition This operator returns the serial communications device parameter
settings. The values are from one of the following two parameter sets:
■ %SerialB_NV%, if channel equals 9,
■ %Serial_NV%, if channel equals 25
baud and options affect the following device parameters:
■ Baud, StopBits, and FlowControl
■ DataBits and Parity
■ CheckParity
See “setsccbatch” for further information.
The values for data bits and parity are determined by the bit positions
defined in Tables 3-25 and 3-26. (See the next section, “SCC Operator
Encoding.”)
Baud, stop bits, and flow control are determined respectively by the
corresponding settings for Baud, StopBits, and FlowControl
device parameters.
Errors rangecheck, stackoverflow, stackunderflow, typecheck
Syntax channel – sccinteractive baud options
Definition This operator pops the input argument off the stack, and pushes 0 0
onto the stack. It does not perform any operation in this application.
Errors rangecheck, stackoverflow, stackunderflow, typecheck