Microcomputer and method for developing system program

Details Microcomputer and method for developing system program Microcomputer and method for developing system program

2008-07-15

2008-07-15

Mccarthy, Christopher S (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

07401257

ABSTRACT:
There are provided a central processing unit (2), a high-speed serial communication interface circuit which can be utilized for a debugging interface, for example, a USB interface circuit (3), and an external bus interface circuit (5) which can be connected to an external memory. The USB interface circuit has a plurality of input buffers (EP1, EP2) therein and data can be output from one of the input buffers in parallel with an input operation to the other input buffer. In a debugging mode, the USB interface circuit receives a system program, and the system program thus received can be output from the external bus interface circuit together with a memory access control signal. When a target program is to be downloaded from a host computer into a target system, a speed of a data transfer can be increased.

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Microsoft Computer Dictionary, 4th. Ed. Microsft Press, 1999, pp. 65, 142,212,379.

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