Sun Microsystems S16A manual Registers

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Registers

S16A User’s Guide

Registers

The S16A SBus 16-bit Dual Analog Interface is configured and controlled with 8-bit and 32-bit SBus registers. Eleven additional internal registers in the Analog Input Module are accessed indirectly through the SBus registers using a simple protocol. Applications access S16A registers through library calls or ioctl calls with S16A-specific parameters, as described in the s16a.h header file.

NOTE: All registers initialized and manipulated by the S16A driver. User applications do not ordinarily need to read or write these registers.

In addition, the S16A provides a standard SBus configuration ROM at the beginning of its block of addresses. Thus the S16A answers with valid data for the first 64 KBytes, in addition to the SBus registers.

26	EDT, Inc. October, 1996

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Contents S16A EDT, Inc. October Contents Tables Overview Installing the Software InstallationInstalling the Hardware Using SunOS VersionS16A User’s Guide Installation Using System V Release 4 Solaris 2.4 or Later Building the Sample ProgramsIncluded Files ReadmeInput and Output Elements of S16A ApplicationsDMA Library Routines Routine DescriptionGeneral DMA Library Routines Syntax S16abufferaddressesS16A-specific Library Routines ArgumentsS16acancel S16acancelcurrentS16achecknextbuffer S16aclose S16aconfigureringbuffers ArgumentsS16adone S16agetdaccontrolregS16agetdiodatareg S16agetdiodirectionregS16agetoutputbits S16aopenS16aread S16aserialreadS16aserialstr S16aserialwriteS16asetdefaults S16asetdaccontrolregS16asetdiodatareg S16asetdiodirectionregS16asetoutputbits S16astartbuffersS16astopbuffers S16awaitforbufferS16awaitfornextbuffer S16awriteError Conditions FoiparityerrorError Codes and Conditions Hardware Interface Electrical InterfaceInterface Signals Signal S16A I/O DescriptionS16A Interface Signals Connector Pinout Pin SignalConnector Pinout Registers SBus Addresses S16A ROMDMA Registers Current DMA Address RegistersNext DMA Address Registers Current Count Registers Control and Next Count RegistersDIO Direction Register Direct I/O RegistersDAC Output Control Register DIO Data RegisterName Description Analog Input Module Internal RegistersDAC Output Control Register Analog Input Module Internal RegistersInput Configuration Registers Input Clock Prescale RegistersTrim Register Use Trim RegistersInput Gain High Byte Values Trim Registers Trim Output Offset RegistersAnalog Input Module Control Protocol Temperature RegisterAnalog Input Module Uart Registers Trim Input Gain RegistersWrite to a Clock Prescale Register Write to an Input Configuration RegisterRead from an Input Configuration Register Read from a Clock Prescale RegisterUart Command/Status Register Uart Command/Status RegisterRead the Temperature Register Write to a Trim RegisterXilinx Programming Registers Uart Data RegisterSpecifications References Contacting EDT Index 15-16Configuration ROM