NAME

scc − serial keyboard/mouse/communications interface

SYNOPSIS

controller   scc0   at tc0   slot 3   vector sccintr

DESCRIPTION

Two base board Zilog scc dual UARTS provide DEC 3000 series personal systems with keyboard, mouse, and serial communications interfaces. The serial communications interfaces can operate at baud rates from B50 to B38400 (see tty(7)). 

In alternate console configurations (that is, no graphics head), communications port 2 (/dev/tty01) becomes the system console. The serial system console port always operates at 9600 BPS, 8-bits, no parity.  No modem control is supported. 

RESTRICTIONS

Data communications equipment attached to the console serial port in alternate console configurations must be set to 9600 BPS, 8-bits, no parity. The scc driver enforces this restriction. 

Only communications port 1 (/dev/tty00) includes full modem control. 

FILES

/dev/consoleconsole terminal

/dev/tty00local terminal

/dev/tty01local terminal

RELATED INFORMATION

console(7), devio(7), tty(7), MAKEDEV(8)