1 .\" $OpenBSD: sab.4,v 1.6 2003/06/06 10:29:42 jmc Exp $
3 .\" Copyright (c) 2001 Jason L. Wright (jason@thought.net)
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34 .Nd Infineon SAB82532 (ESCC2) serial communications driver
44 SAB82532 (ESCC2) serial interface chip used in PCI-based UltraSPARC
47 The ESCC2 provides two independent input/output channels per instance.
48 These chips are normally used to provide RS-423 and RS232 serial ports
49 for general purpose use.
53 driver supports all of the standard
56 The status of the DTR, RTS, CTS, and DCD signals can be queried with
58 command, but, due to limitations in the hardware,
59 only the DTR and RTS signals can be modified with
60 .Dv TIOCMSET , TIOCMBIC ,
66 .Bl -tag -width ".Pa /dev/tty[a-b]" -compact
77 driver first appeared in