NAME
mfcs
-
BSC/AlfaData MultiFaceCard II/III
serial communications interface
SYNOPSIS
mfc0 at mainbus0
mfcs0 at mfc0 unit 0
mfcs1 at mfc0 unit 1
DESCRIPTION
The
MultiFaceCard II/III
controls, among other things, a dual port
EIA
RS-232C
(CCITT
V.28)
communications interface with a multiple character buffer.
Input and output for each MultiFaceCard III line may set to a maximum baud
rates of 1152000. Formula for baud rate: Baud = 230400 / N with 1 < N < 65536.
Input and output for each MultiFaceCard II line may set to a maximum baud
rates of 57600. Formula for baud rate: Baud = 115200 / N with 1 < N < 65536.
FILES
/dev/ttyA?
-
DIAGNOSTICS
- mfcs0: fifo overflow.
-
The four-character input
``fifo''
has overflowed and incoming data has been lost.
- mfcs0: %d buffer overflows.
-
The software based input ring buffer
has overflowed %d times and incoming data has been lost.
SEE ALSO
tty(4)
HISTORY
The
Amiga
mfcs
device first appeared in
NetBSD1.1
BUGS
The MultiFaceCard II/III serial ports use the level 6 interrupt and may
experience fifo overflows if the LEV6_DEFER option is used.