Agilent Technologies Model A.08.xx manual Setting and Querying the Status Register

Status Registers

Use Status Registers to Determine the State of Analyzer Events and Conditions

Setting and Querying the Status Register

See Figure 2-3. Each bit in a register is represented by a numerical value based on its location. This number is sent with the command to enable a particular bit. To enable more than one bit, send the sum of all of the bits involved.

For example, to enable bit 0 and bit 6 of the standard event status register, you would send the command *ESE 65 (1 + 64).

The results of a query are evaluated in a similar way. If the *STB? command returns a decimal value of 140, (140 = 128 + 8 + 4) then bit 7 is true, bit 3 is true, and bit 2 is true.

Figure 2-3 Status Register Bit Values

Decimal Value 32768 16384 8192 4096 2048 1024 512 256 128 64 32 16 8 4 2 1

Bit Number

15 14 13 12 11 10

9

8

7

6

5

4

3

2

1

0

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Details of Bits in All Registers

Refer to Figure 2-2. The rest of this chapter lists the bits in each register shown in the figure, along with descriptions of their purpose.

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