National Instruments GPIB-1014 Series, User Manual

Page: 44 / 254

© National Instruments Corporation 4-1 GPIB-1014 User Manual
Chapter 4
Register Bit Descriptions
This chapter contains a description of the register map, a list of interface registers, and a
description of the DMA registers.
Register Map
The register map for the GPIB-1014 is shown in Table 4-1. This table gives the register name,
the register address, the register size in bits, and the register type (read only, write only, or read
and write).
Note:
For the sake of brevity, only Channel 0 addresses for the DMA Register Group are listed
in Table 4-1. See Table 2-3 for a complete listing of the addresses for all four channels of
the DMA Register Group.
Table 4-1. GPIB-1014 Register Map
Register Name Address (Hex) Type Size
GPIB Interface Register Group:
Data In Register Base a 111 Read only 8-bit
Command/Data Out Register Base a 111 Write only 8-bit
Interrupt Status Register 1 Base a 113 Read only 8-bit
Interrupt Mask Register 1 Base a 113 Write only 8-bit
Interrupt Status Register 2 Base a 115 Read only 8-bit
Interrupt Mask Register 2 Base a 115 Write only 8-bit
Serial Poll Status Register Base a 117 Read only 8-bit
Serial Poll Mode Register Base a 117 Write only 8-bit
Address Status Register Base a 119 Read only 8-bit
Address Mode Register Base a 119 Write only 8-bit
Command Pass Through Register Base a 11B Read only 8-bit
Auxiliary Mode Register Base a 11B Write only 8-bit
Hidden Registers
Internal Counter Register Base a 11B Write only 8-bit
Parallel Poll Register Base a 11B Write only 8-bit
Auxiliary Register A Base a 11B Write only 8-bit
Auxiliary Register B Base a 11B Write only 8-bit
Auxiliary Register E Base a 11B Write only 8-bit
Address Register 0 Base a 11D Read only 8-bit
Address Register Base a 11D Write only 8-bit
Address Register 1 Base a 11F Read only 8-bit
End Of String Register Base a 11F Write only 8-bit
(continues)