One-chip microcomputer

Patent

One-chip microcomputer

- 08 Jun 1981

7

TL;DR: In this article, address data transferred in series from an external circuit for a console are fetched and stored in a shift register 16, and the address data are compared with data in a program counter 28; when the both coincide, an arithmetic processing part 12 is held.

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Citations

Patent

Microcomputer allowing external monitoring of internal resources

Hajime Sakuma

- 07 Jun 1995

TL;DR: In this paper, a microcomputer having a function for monitoring internal resources closed within the microcomputer without preventing an execution of the micro computer is described, where an address of a register within a micro-computer is determined in advance from the outside of the machine, and at a coincident timing with the register address outputted onto an internal register address bus, data on an internal data bus are taken in and are outputted to the outside microcomputer via a serial interface.

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Program executing control system

Masuko Hiroshi

- 19 Sep 1986

TL;DR: In this paper, the authors propose to improve efficiency and seliability of a maintenance and debugging operation by comparing an instruction code of a sequentially performed instruction with a set instruction code when a stop-code stop mode is set by stopping execution of a CPU when coincidence of both code is obtained.

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Microprocessor unit incorporating debugging device

Otani Akio

- 27 Mar 1989

TL;DR: In this paper, the authors propose a debugging circuit that allows direct write and read accesses to an internal register group regardless of a bus unit, as long as the command 101 is equal to the read and write commands to the group 111.

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1

Patent

Lsi system connecting register in parallel and hierarchically

Satou Tomoru, +6 more

- 05 Nov 1986

TL;DR: In this article, the internal state of an LSI system is monitored by connecting status registers in parallel and hierarchically and enabling to transfer the content of each register to an output register through a bus.

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