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NetBSD 6.1.5 - man page for rtii (netbsd section 4)

RTII(4) 			   BSD Kernel Interfaces Manual 			  RTII(4)

NAME
     rtii -- AIMS Lab Radiotrack II FM radio device driver

SYNOPSIS
     option RADIO_TEA5759

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

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

     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 AFC.

     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.

SEE ALSO
     isa(4), radio(4)

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

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

BSD					 October 8, 2001				      BSD


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