Parameter adjustment system for analog modules

Abstract

The invention discloses a parameter adjusting system for analog modules. The parameter adjusting system comprises a built-in self-testing module, a user function module, a bus switch and a plurality of analog modules, the analog modules totally have a plurality of parameters, the built-in self-testing module is connected with the bus switch through a register access bus, the user function module is connected with the bus switch through the register access bus, the bus switch is connected with the analog modules through the register access bus, the register access bus comprises an address bus, a data bus and a control bus, one or a plurality of parameter registers are internally arranged in each analog module in the whole parameter adjusting system for the analog modules, the number of the parameter registers built in each analog module is equal to that of the parameters of the analog module, and each parameter register is provided with a unique register address. The parameter adjusting system has the advantages of standard structure, small area and clear connecting line.

Description

technical field [0001] The present application relates to an application-specific integrated circuit (ASIC, Application-specific integrated circuit), in particular to a system for adjusting parameters of multiple analog modules. Background technique [0002] see figure 1 , which is an existing analog module parameter adjustment system, including a built-in self-test module 10, a user function module 20, a bus switch 30 and a plurality of analog modules 40. figure 1 Five analog modules 40 are exemplarily shown in FIG. All the simulation modules 40 involve a total of K parameters, K is a natural number greater than 2, and each parameter also has a different bit width. figure 1 K=9 is exemplarily shown in . [0003] A first group of parameter registers 11 is built in the built-in self-test module 10, the number of which is K, and the size corresponds to the bit width of the K parameters respectively, and is used to store the K parameters respectively. The built-in self-test...

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Problems solved by technology

[0010] Third, the bus switch is used to switch between three sets of data lines, and each set of data lines has K roots. When the value of K is large, the switching circuit inside the bus switch will become very complicated.

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