Serial lines

Numeric

Specifies CSR address. The address must be a valid QBUS 22-bit wide address in I/O space.

Default values are 017760440 for the DHV11-family controllers and 017760100 for the DZV11/DZQ11 family controllers, which are the factory settings for asynchronous serial line multiplexers.

Specifies the interrupt vector.

The default value is 0300, which is the factory setting for asynchronous serial line multiplexers.

line[N]

N=0…3(7,15)

communication[N]

N=0…4(7,15)

• "ASCII" - for connection to terminals  (default)

• "BINARY" - for serial lines carrying binary (packet) protocols, which are used mainly for communicating with PLCs

rts[N]

N=0…3(7,15)

Controls the RTS signal of the Nth line of the multiplexer. 

When left blank (initial state), the level of the RTS signal is as requested by the VAX/PDP11 software.

dsr[N]

N=0…3(7,15)

• "On" - always reports the DSR signal assertion
• "Off" - always reports the DSR signal deassertion
• "DSR" - use the DSR signal of the physical serial line (if configured)
• "CD", "DCD", "RLSD" - use the CD (carrier detect) signal of the physical serial line (if configured)

tx_q_max_depth[N]

N=0…3(7,15)

Specifies the depth of the TX FIFO for the N-th line of the multiplexer. Possible values are 1…1000, initially set to 1, to properly represent the hardware limitation of certain multiplexers. Values greater than 1 improve transmission rate of the corresponding lines, but break correspondence to the original hardware.

load DHV11/DHV11 TXA address=017760440 vector=0300
load DHV11/DHV11 TXB address=017760460 vector=0310

load DHW42CA/DHV11 TXA

This type of mapping associates a COM port on a host system with an emulated VAX/PDP11 serial line controller virtual "line".

The COM port can be a physical hardware port or a logical COM port.

A defined COM port on a host system in the form of "\\.\COMn"

Example:

Forces the baud rate of the corresponding COM port to be a specified value.

The variety of supported values depends on the underlying physical communication resource (COM port). The most widely used values are: 300, 1200, 9600, 19200, 38400.

Example:

Specifies what byte sequences received over the physical serial line will trigger a HALT command.

This parameter works only for the console line (for the one UART line and "line[3]" of QUART).

Specify the following values: "Ctrl-P", "Break" or "none" ("none" disables triggering a HALT condition).

Example:

The default value is "Break" for line 3 of QUART and "none" for other lines.

Specifies what byte sequences received over the physical serial line will trigger a STOP condition. The STOP condition causes CHARON-VAX / CHARON-PDP to exit.

Specify the one of the following values: “F6” or “none” ("none" disables triggering a STOP condition).

Example:

The default value is "none".

Setting "F6" triggers the STOP condition upon receipt of the "<ESC>[17~" sequence. Terminals usually send these sequences by pressing the F6 button

A string specifying a file name to store the content of the console sessions or a directory where the log files for each individual session will be stored.

If an existing directory is specified, CHARON-VAX / CHARON-PDP automatically enables creation of individual log files, one for each session using the same scheme as used for the generation of the rotating log files. If the "log" parameter is omitted, CHARON-VAX / CHARON-PDP does not create a console log.

Examples:

load physical_serial_line/chserial OPA0
set OPA0 line="\\.\COM1"

A remote host’s IP address or hostname (and optionally a remote TCP/IP port number) for the virtual serial line connection. If omitted, the virtual serial line does not initiate a connection to the remote host and will listen for incoming connection requests.

Specify the value in the following form:

If the "<port-no>" is not specified, the virtual serial line uses the TCP/IP port number specified by the "port" parameter (see below).

An application (a terminal emulator is assumed in most cases) to be started on initialization of this serial line emulation. The specified application startup string may contain all required parameters.

Example:

In this example the terminal emulator application: "putty" is started with the parameters "-load OPA0" telling it to load a specific saved session named "OPA0", (created separately) from the host registry.

The "application" parameter is often combined with a "port" parameter:

Specifies what byte sequences received over a virtual serial line triggers a HALT command.

This parameter works only on the console line (for CHARON-VAX / CHARON-PDP it is the only line of UART and "line[3]" of QUART).

Specify one of the following values: "Ctrl-P", "Break" or "none" to disable triggering a HALT condition. The commands are case insensitive.

Example:

The default value is "Break" for line 3 of QUART and "none" for other lines.

Specifies what byte sequences received over the virtual serial line will trigger a STOP condition. The STOP condition causes CHARON-VAX / CHARON-PDP to exit.

Specify one of the following values: “F6” or “none” ("none" disables triggering a STOP condition). The commands are case insensitive.

Example:

The default value is "none".

Setting "F6" triggers the STOP condition upon receipt of the "<ESC>[17~" sequence.

A string specifying the filename to store the content of the console sessions or a directory where log files for each individual session will be stored.

If an existing directory is specified, CHARON-VAX / CHARON-PDP automatically enables the creation of individual log files, one for each session using the same scheme as used for the generation of the rotating log files. If the "log" parameter is omitted, CHARON-VAX / CHARON-PDP does not create any console log.

Examples:

load virtual_serial_line/chserial OPA0
set OPA0 port=10003 stop_on="F6"