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.Dd January 18, 2010 .Dt SAB 4 sparc64 .Os .Sh NAME .Nm sab , .Nm sabtty .Nd .Tn Infineon 82532 Enhanced Serial Communication Controller (ESCC2) .Sh SYNOPSIS .Cd "sab* at ebus?" .Cd "sabtty* at sab? channel ?" .Sh DESCRIPTION The .Nm driver provides .Tn TTY support for the .Tn Infineon (previously .Tn Siemens ) 82532 serial communications interface found in many .Tn Sun Ultra workstations and servers.
p 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. .Sh NOTES The speed cannot be changed on the ports connected the .Tn Remote System Control (RSC) on a .Tn Sun Enterprise[tm] 250 Server (ttyh2 and ttyh3). These ports are fixed at 115200 baud. .Sh FILES l -tag -width XdevXttyh0X t Pa /dev/ttyh[0123] serial ports .El .Sh DIAGNOSTICS l -tag -width indent t sab*: ring overflow The software input .Qq ring has overflowed. This usually means input flow-control is not configured correctly
q i.e. incorrect cable wiring . .El .Sh SEE ALSO .Xr tty 4 , .Xr zstty 4 .Sh HISTORY The .Nm sabtty driver first appeared in .Ox 3.1 and was then ported to .Nx 2.0 . .Sh AUTHORS .An Jason L. Wright