S16agetdiodatareg, S16agetdiodirectionreg | Sun Microsystems S16A

S16A User’s Guide

Input and Output

s16a_get_dio_data_reg

Description

Get current state of the DIO Data register. The low 12 bits reflect the current state of the DIO pins. Bits that are configured as outputs are read as zero. To check for an error, clear the errno global variable before calling this function, then check it for nonzero after the function returns.

Syntax

u_int s16a_get_dio_data_reg(S16aDev *s16a_p);

Arguments

s16a_p

S16A device handle returned from s16a_open

Return

Integer containing current state of the DIO Data register. The global variable errno is set on error.

s16a_get_dio_direction_reg

Description

Get current state of the DIO Direction register. The low 12 bits reflect the configuration of the corresponding DIO pins. If a bit is set, the DIO pin of the same number is configured as an output signal. To check for an error, clear the errno global variable before calling this function, then check it for nonzero after the function returns.

Syntax

u_int s16a_get_dio_direction_reg(S16aDev *s16a_p);

Arguments

s16a_p

S16A device handle returned from s16a_open

Return

Integer containing current state of the DIO Direction register. The global variable errno is set on error.

EDT, Inc. October, 1996

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Image 17

Sun Microsystems S16A manual S16agetdiodatareg, S16agetdiodirectionreg

Contents

S16A EDT, Inc. October Contents Tables Overview Installing the Hardware InstallationInstalling the Software Using SunOS Version S16A User’s Guide Installation Building the Sample Programs Using System V Release 4 Solaris 2.4 or Later Readme Included Files Elements of S16A Applications Input and Output General DMA Library Routines DMA Library RoutinesRoutine Description S16A-specific Library Routines S16abufferaddressesSyntax Arguments S16achecknextbuffer S16acancelS16acancelcurrent S16aclose Arguments S16aconfigureringbuffers S16agetdaccontrolreg S16adone S16agetdiodirectionreg S16agetdiodatareg S16aopen S16agetoutputbits S16aserialread S16aread S16aserialwrite S16aserialstr S16asetdaccontrolreg S16asetdefaults S16asetdiodirectionreg S16asetdiodatareg S16astartbuffers S16asetoutputbits S16awaitforbuffer S16astopbuffers S16awrite S16awaitfornextbuffer Error Codes and Conditions Error ConditionsFoiparityerror Electrical Interface Hardware Interface S16A Interface Signals Interface SignalsSignal S16A I/O Description Connector Pinout Connector PinoutPin Signal Registers S16A ROM SBus Addresses Next DMA Address Registers DMA RegistersCurrent DMA Address Registers Control and Next Count Registers Current Count Registers DAC Output Control Register Direct I/O RegistersDIO Direction Register DIO Data Register DAC Output Control Register Analog Input Module Internal RegistersName Description Analog Input Module Internal Registers Input Clock Prescale Registers Input Configuration Registers Input Gain High Byte Values Trim RegistersTrim Register Use Trim Registers Trim Output Offset Registers Analog Input Module Uart Registers Temperature RegisterAnalog Input Module Control Protocol Trim Input Gain Registers Read from an Input Configuration Register Write to an Input Configuration RegisterWrite to a Clock Prescale Register Read from a Clock Prescale Register Read the Temperature Register Uart Command/Status RegisterUart Command/Status Register Write to a Trim Register Uart Data Register Xilinx Programming Registers Specifications References Contacting EDT 15-16 Index Configuration ROM