| 20120017051 | ISOLATION-FREE IN-CIRCUIT PROGRAMMING SYSTEM - Disclosed is an isolation-free in-circuit programming system including an in-circuit programmer and an application board connected to the in-circuit programmer through a peripheral interface bus and having a bus controller and a memory, wherein the bus controller is connected to the memory through a system bus, in which the in-circuit programmer includes a leakage current discharging circuit connected to the bus controller for detouring a leakage current flowing from the memory or the in-circuit programmer to the bus controller to flow therethrough. The in-circuit programmer also includes an input level shifter for receiving data signals from the memory and adjusting the high-level input voltage of the in-circuit programmer to decode any weak high-level output voltage from the memory, thereby allowing the high-level output voltage of the memory to be higher than the high-level input voltage of the in-circuit programmer. | 01-19-2012 |
