Patent ID: 7210114
Filing Date: 2007-04-24
Classification: G06F

Abstract:
1. A method for mapping a signal driver of an integrated circuit to one of a plurality of interconnect pads, comprising: determining an output impedance of said signal driver; determining a desired slew rate for a signal generated by said signal driver; calculating a desired characteristic capacitance, said desired characteristic capacitance having a capacitance value which together with said output impedance of said signal driver will provide a resulting characteristic time constant required to achieve said desired slew rate on a transmission line connected to receive said signal; calculating at least one possible interconnection path to each said plurality of interconnect pads; estimating a characteristic capacitance associated with each said at least one possible interconnection paths; selecting one of said possible interconnection path whose associated characteristic capacitance is substantially equal to said desired characteristic capacitance; and mapping said output driver to said interconnection pad associated with said selected interconnection path.