An Improved Security Chip Communication Rate Setting Method

摘要

This paper analyzes the shortcomings of two setting methods which is commonly used in security chip communication rate, and proposes an improved setting method. The basic communication rate instruction parameters are set in a security chip for setting the communication rate in different communication modes. The interface device sends the communication rate instructions to the security chip. The security chip executes the communication rate instructions so as to complete the setting of the communication rate. This method can switch the communication mode freely, so it can be applied to diversified application scenarios.