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TC(4) FreeBSD Kernel Interfaces Manual TC(4) NAME tc - TURBOchannel expansion bus driver SYNOPSIS alpha tc* at tcasic? pmax tc* at mainbus0 vax tc0 at vsbus0 DESCRIPTION The tc driver provides machine-independent support for the DEC TURBOchannel expansion bus found on all DEC 5000-series machines with MIPS, DEC 3000-series with Alpha processors and VAXstation 4000 machines with the optional TURBOchannel adaptor. Your system may support additional TURBOchannel devices. Drivers for TURBOchannel devices not listed here are machine-dependent. Consult your system's intro(4) for additional information. HARDWARE NetBSD includes machine-independent TURBOchannel drivers, sorted by device type and driver name: SCSI interfaces tcds(4) PMAZ-DS, PMAZ-FS, PMAZB-AA and PMAZC-AA dual-channel SCSI adapters Network interfaces le(4) LANCE Ethernet interface Frame buffers cfb(4) PMAG-B CX colour unaccelerated 2-D framebuffer mfb(4) PMAG-A MX monochrome framebuffer px(4) PMAG-C PX accelerated graphics boards pxg(4) PMAG-D, PMAG-E and PMAG-F PXG accelerated graphics boards sfb(4) PMAGB-BA HX colour unaccelerated 2-D framebuffer tfb(4) PMAG-J TX 24-bit colour unaccelerated 2-D framebuffer Miscellaneous ioasic(4) baseboard IO control ASIC for DEC TURBOchannel systems tcu(4) TC-USB USB host and GPIO option SEE ALSO intro(4), tc(9) HISTORY The tc driver first appeared in NetBSD 1.1. BUGS The tc driver makes poor use of interrupt priority on the 5000/1xx series systems. FreeBSD 14.1-RELEASE-p8 February 26, 2021 FreeBSD 14.1-RELEASE-p8