shb(4) [netbsd man page]

SHB(4)							   BSD Kernel Interfaces Manual 						    SHB(4)

NAME

     shb -- bus for SuperH on-chip peripheral devices

SYNOPSIS

     shb* at mainbus?

DESCRIPTION

     The shb driver provides a bus to which drivers for integrated peripheral devices found in various SuperH microprocessors attach.

     adc       analog/digital converter.

     sci       serial communication interface.

     scif      serial communication interface with FIFO.

     wdog      watchdog timer.

SEE ALSO

     adc(4), sci(4), scif(4), wdog(4)

HISTORY

     The shb driver first appeared in NetBSD 1.5.

BSD
								 October 21, 2003							       BSD

SPI(4)							   BSD Kernel Interfaces Manual 						    SPI(4)

NAME

     spi -- introduction to machine-independent SPI bus support and drivers

SYNOPSIS

     spi* at mainbus?

     Other attachments are machine-dependent and will depend on the bus topology of your system.  See intro(4) for your system for more informa-
     tion.

DESCRIPTION

     NetBSD includes a machine dependent SPI (Serial Peripheral Interface) bus subsystem, and several different machine-independent SPI device
     drivers.

     Your system may support additional machine-dependent SPI devices.	Consult your system's intro(4) for additional information.

     SPI is a 4-wire synchronous full-duplex serial bus.  Some systems provide support for Microwire, which is Philips' name for a strict subset
     of SPI, with more rigidly defined signaling.  Therefore, Microwire devices are also supported by the SPI framework.

     Note that when referencing SPI devices in a config(1) file, the 'slave' must be provided, as SPI lacks any way to automatically probe
     devices.

HARDWARE

     NetBSD includes the following machine-independent SPI drivers

	   m25p       STMicroelectronics M25P family of NOR flash devices.

	   tm121temp  Texas Instruments TMP121 temperature sensor.

SEE ALSO

     m25p(4), tm121temp(4)

HISTORY

     The machine-independent SPI framework was written by Garrett D'Amore for the Champaign-Urbana Community Wireless Network Project (CUWiN), and
     appeared in NetBSD 4.0.

BSD
								  October 9, 2006							       BSD