TCOM(4) | Device Drivers Manual | TCOM(4) |
tcom
—
multiplexing serial communications interface
For 4-port TC-400 series boards:
tcom0 at isa? port 0x100 irq 5
com2 at tcom? slave ?
com3 at tcom? slave ?
com4 at tcom? slave ?
com5 at tcom? slave ?
For 8-port TC-800 series boards:
tcom0 at isa? port 0x100 irq 5
com2 at tcom? slave ?
com3 at tcom? slave ?
com4 at tcom? slave ?
com5 at tcom? slave ?
com6 at tcom? slave ?
com7 at tcom? slave ?
com8 at tcom? slave ?
com9 at tcom? slave ?
The tcom
driver provides support for the
Byte Runner Technologies TC-400 and TC-800 series boards that multiplex
together up to four or eight EIA RS-232C (CCITT V.28) communications
interfaces.
Each tcom
device is the master device for
up to eight com
devices. The kernel configuration
specifies these com
devices as slave devices of the
tcom
device, as shown in the synopsis. The slave ID
given for each com
device determines which bit in
the interrupt multiplexing register is tested to find interrupts for that
device. The port specification for the tcom
device
is used to compute the base addresses for the com
subdevices and the port for the interrupt multiplexing register.
Not all possible configuration options are currently supported (for example, speeds beyond 115200 baud are not currently supported).
The tcom
driver was written by Jukka
Marin.
May 20, 1998 | NetBSD 10.99 |