SAB(4)

NAME
sab, sabtty - Infineon 82532 Enhanced Serial Communication Controller (ESCC2)

SYNOPSIS
sab* at ebus?
sabtty* at sab? channel ?

DESCRIPTION
The sab driver provides TTY support for the Infineon (previously Siemens) 82532 serial communications interface found in many Sun Ultra workstations and servers.

Input and output speeds for each line may be set to any baud rate in the following list: 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600, 76800, 115200, 153600, 230400, 307200, 460800, 614400, 921600.

NOTES
The speed cannot be changed on the ports connected the Remote System Control (RSC) on a Sun Enterprise[tm] 250 Server (ttyh2 and ttyh3). These ports are fixed at 115200 baud.

FILES

/dev/ttyh[0123]
    serial ports

DIAGNOSTICS

sab*: ring overflow
    The software input "ring" has overflowed. This usually means input flow-control is not configured correctly (i.e. incorrect cable wiring).

SEE ALSO
tty(4), zstty(4)

HISTORY
The sabtty driver first appeared in OpenBSD 3.1 and was then ported to NetBSD 2.0.

AUTHORS
Jason L. Wright