System for loading a boot program into an initially blank programmable memory of a microprocessor using state machine and serial bus
摘要
A state machine has specific states to boot a microprocessor and retrieve data from the microprocessor's memories while the microprocessor is running, but with operation temporarily suspended under control of the state machine. The state machine is programmed after it is installed on a circuit board with the microprocessor. The state machine is connected to a standard bus and through its specific states provides an interface to the microprocessor as well as the instructions for booting the microprocessor when the microprocessor is powered up.
申请公布号
US5652886(A)
申请公布日期
1997.07.29
申请号
US19940317975
申请日期
1994.10.03
申请人
UNITED TECHNOLOGIES CORPORATION
发明人
TULPULE, BHALCHANDRA R.;FOSS, MARK A.;KYSAR, III, EDWARD J.;OSCARSON, EDWARD M.;SPAIN, LEONARD;CRISAFULLI, MICHAEL C.