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RTII(4)                      Device Drivers Manual                     RTII(4)

     rtii - AIMS Lab Radiotrack II FM radio device driver

     option RADIO_TEA5759

     rtii0  at isa? port 0x20c
     rtii1  at isa? port 0x30c
     radio* at rtii0

     The rtii driver provides support for the AIMS Lab Radiotrack II FM radio

     The Radiotrack II is a stereo FM tuner that allows to tune in the range
     87.5 - 108.0 MHz, report signal status on the current frequency, force
     audio output to mono, perform hardware signal search, and has an internal

     The Radiotrack II cards take only one I/O port.  The I/O port is set by
     the driver to the value specified in the configuration file and must be
     either 0x20c or 0x30c.

     Philips Semiconductors released two almost identical chips TEA5757 and
     TEA5759.  The TEA5757 is used in FM-standards in which the local
     oscillator frequency is above the radio frequency (e.g. European and
     American standards).  The TEA5759 is the version in which the oscillator
     frequency is below the radio frequency (e.g. Japanese standards).  The
     option RADIO_TEA5759 changes the algorithm of frequency calculation for
     the TEA5757 based cards to conform with the Japanese standards.

     isa(4), radio(4)

     The rtii device driver appeared in OpenBSD 3.0 and NetBSD 1.6.

     The rtii driver was written by Vladimir Popov and Maxim Tsyplakov.  The
     man page was written by Vladimir Popov.

NetBSD 9.99                     October 8, 2001                    NetBSD 9.99