Sun Microsystems EDT S16A User Manual
Registers
S16A User’s Guide
26
EDT, Inc. October, 1996
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
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.
addresses. Thus the S16A answers with valid data for the first 64 KBytes, in addition to the SBus registers.