| 摘要 |
PURPOSE:To enable a microprocessor to read immediately the set value data of the present set out of an RAM storing said data by giving an access to said RAM. CONSTITUTION:The attenuation quantity of an input attenuator is set with the data given from a microprocessor 1 and stored in a register 4-0 for example. While the amplification degree of an intermediate frequency amplifier is set with the data given from the processor 1 and stored in a register 4-1. Furthermore the sweep center frequency of a sweep frequency oscillator is set with the data given from the processor 1 and stored in a register 4-N. Under such conditions, the data delivered from the processor 1 and set the attenuation quantity of the input attenuator is stored to the address (corresponding to the address of the register 4-0) of an RAM2. At the same time, the same data is stored to the register 4-0 with the same instruction. |
