SS.ComSt_Set_Status modified by Lothan

Lothan — Fri, 27 Jun 2014 23:20:34 -0000

Used by the SCF manager to configure a serial port.

Entry Conditions

A
path number

B
SS.ComSt ($28)

Y
high byte: parity

low byte: baud rate

Error Output

CC
carry set on error

B
error code

Additional Information

Baud Configuration. The high order byte of Y determines the baud rate, the word length, and number of stop bits. The byte is configured as follows:

PD.BAU  7 6 5 4 3 2 1 0
        | | | | |     |
        | +-+ | +-----+
        |  |  |    |
        |  |  |    +----- Baud rate
        |  |  +---------- Reserved
        |  +------------- Word length
        +---------------- Stop bits

Stop bits:

0
1

1
2

Word length:

00
8 bit

01
7 bit

Baud rate

0000
110

0001
300

0010
600

0011
1200

0100
2400

0101
4800

0110
9600

0111
19200

1xxx
undefined

Parity Configuration. The low order byte of Y determines parity. The byte is configured as follows:

PD.BAU  7 6 5 4 3 2 1 0
        |   | |       |
        +---+ +-------+
          |       |
          |       +----- Special use
          +------------- Parity

Parity

xx0
none

001
odd (ACIAPAK or MODPAK only)

011
even (ACIAPAK or MODPAK only)

101
transmit: mark

receive: ignore

111
transmit: space

receive: ignore

The SCF manager uses SS.ComSt to inform a driver that serial port configuration information has been changed in the path descriptor. After calling SS.ComSt, a user routine must call the SS.Opt SetStat to correctly update the path descriptor.
This call is for the use of the SCF manager. Use SS.Opt for changing baud, stop bit, and parity values.

Recent changes to SS.ComSt_Set_Status

SS.ComSt_Set_Status modified by Lothan