The Status Register Reading the register at base + 0416 reads the amplifier’s Status register. The Status register monitors the amplifier’s input/output enable conditions and overload conditions.

Address

15

14

13 - 12

11

10

9

8

7 - 0

 

 

 

 

 

 

 

 

 

base + 0416

not used

MODID*

not used

Main

Input 1

Input 2

Main

FF16

 

(0)

 

(0)

Output

Enable

Enable

Output

 

 

 

 

 

Ovld

 

 

State

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Control Register

MODID. A zero (0) in bit 14 indicates that the amplifier is selected by a high state on the P2 MODID line. A one (1) indicates the amplifier is not selected via the P2 MODID line.

Main Output Ovld. A one (1) in bit 11 indicates an output signal (Main Output BNC) can not be produced with the current input conditions.

Input 1 Enable. A one (1) in bit 10 indicates the ’Input 1’ BNC port is enabled. A zero (0) indicates the input port is disabled.

Input 2 Enable. A one (1) in bit 9 indicates the ’Input 2’ BNC port is enabled. A zero (0) indicates the input port is disabled.

Main Output State. A one (1) in bit 8 indicates the ’Main Output’ BNC port is enabled. A zero (0) indicates the output port is disabled.

At power-on, the inputs and output are disabled.

Writing to the register at base + 0416 writes to the amplifier’s Control register. The Control register is used to perform a hardware reset of the amplifier.

Address

15 - 1

0

 

 

 

base + 0416

not used

Reset

 

 

 

 

 

 

Resetting the Amplifier. Writing a one (1) to bit 0 (hardware) resets the amplifier. Writing a zero (0) turns the reset function off. Bit 0 must be a ’1’ for at least 2 s for the reset to occur. Bit 0 must be set to 0 for normal operation.

C-8 Register-Based Programming

Register Descriptions

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Agilent Technologies E1446A user manual Control Register

E1446A specifications

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