artisan VX414C, User Manual

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3.5 CONFIGURATION REGISTERS
There are several registers used to configure and control the VX414C. These registers are
divided into two groups: VXI Configuration and Relay Control/Status. All of the registers are
located within the A16 address space as shown in Table I. The base address of the registers is a
function of the Logical Address of the module.
Table II. Configuration Register Summary
A16 Address Register Description
Base + 00 VXI ID
Base + 02 VXI Device Type
Base + 04 VXI Status/Control
Base + 06 VXI Unused Register
Base + 08 to 0E Unused
Base + 10 Relay Control/Status K15-K0
Base + 12 Relay Control/Status K31-K16
Base + 14 Relay Control/Status K47-K32
Base + 16 Relay Control/Status K63-K48
3.5.1 VXI Configuration Registers
The VXI configuration registers contain basic information needed to configure a VXIbus system.
The configuration information includes: manufacturer identification, product model code, device
type, memory requirements, device status, and device control. The registers are briefly described
below and are detailed in Figure 4.
VXI Identification (ID) Register (00
16
) A read of this register provides manufacturer
identification, device classification (i.e., register based), and the addressing mode (A16). A write
to this register has no effect.
VXI Device Type Register (02
16
) A read of this register provides the model code identifier. A
write to this register has no effect.
VXI Status/Control Register (04
16
) A read of this register provides the state of P2 MODID* line,
the interrupt level, and the Ready and self-test Passed status. A write to this register controls
resetting of the module.
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