The State Location of IC Card Terminal Device Based on Two Stage Index
Ao J · Microcomputer Information · 2007
The state of terminal device is critical to IC card system which consists of different kinds of terminal device. The paper in-troduce the structure of terminal device table and present a state location of IC Card terminal device based on two stage index strat-egy. As a keyword , the device number is a four bit compressed BCD code. The device number is divided two parts, the previous two-bit and last two-bit correspond two index. The device state information can be located according to the index information is a fast way.