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© 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 address + 111 Read only 8-bit
Command/Data Out Register Base address + 111 Write only 8-bit
Interrupt Status Register 1 Base address + 113 Read only 8-bit
Interrupt Mask Register 1 Base address + 113 Write only 8-bit
Interrupt Status Register 2 Base address + 115 Read only 8-bit
Interrupt Mask Register 2 Base address + 115 Write only 8-bit
Serial Poll Status Register Base address + 117 Read only 8-bit
Serial Poll Mode Register Base address + 117 Write only 8-bit
Address Status Register Base address + 119 Read only 8-bit
Address Mode Register Base address + 119 Write only 8-bit
Command Pass Through Register Base address + 11B Read only 8-bit
Auxiliary Mode Register Base address + 11B Write only 8-bit
Hidden Registers
Internal Counter Register Base address + 11B Write only 8-bit
Parallel Poll Register Base address + 11B Write only 8-bit
Auxiliary Register A Base address + 11B Write only 8-bit
Auxiliary Register B Base address + 11B Write only 8-bit
Auxiliary Register E Base address + 11B Write only 8-bit
Address Register 0 Base address + 11D Read only 8-bit
Address Register Base address + 11D Write only 8-bit
Address Register 1 Base address + 11F Read only 8-bit
End Of String Register Base address + 11F Write only 8-bit
(continues)