公开(公告)号：DE69230642D1

公开(公告)日：2000-03-09

申请号：DE69230642

申请日：1992-11-12

Applicant: MICROCHIP TECH INC

Inventor： CHEN CHAO-WU ,  ROSENHAGEN KURT ,  ITALIANO GREG ,  MITRA SUMIT

IPC: G06F9/24 ,  G06F9/445 ,  G06F9/06 ,  G06F12/02

Abstract: A microcontroller fabricated on a semiconductor chip is adapted, when operating, to execute programs and instructions and, in response, to generate control signals to selectively control external apparatus. A clock generates timing signals to control the timing of the microcontroller execution and operation. An on-chip program memory has space avilable for storing a program to be executed by the microcontroller in sequential steps in successive address locations of the program memory. An instruction stored in unerasable memory on the chip initiates self-programming of the program memory with the program to be executed by the microcontroller by enabling a pointer timed by the clock to alternately read addresses containing steps of the program to be executed from off-chip memories and to write same into successive addresses of the on-chip program memory by incrementing the latter addresses with each step to be written therein.

公开(公告)号：DE69230642T2

公开(公告)日：2001-05-23

申请号：DE69230642

申请日：1992-11-12

Applicant: MICROCHIP TECH INC

Inventor： CHEN CHAO-WU ,  ROSENHAGEN KURT ,  ITALIANO GREG ,  MITRA SUMIT

IPC: G06F9/24 ,  G06F9/445 ,  G06F9/06 ,  G06F12/02

Abstract: A microcontroller fabricated on a semiconductor chip is adapted, when operating, to execute programs and instructions and, in response, to generate control signals to selectively control external apparatus. A clock generates timing signals to control the timing of the microcontroller execution and operation. An on-chip program memory has space avilable for storing a program to be executed by the microcontroller in sequential steps in successive address locations of the program memory. An instruction stored in unerasable memory on the chip initiates self-programming of the program memory with the program to be executed by the microcontroller by enabling a pointer timed by the clock to alternately read addresses containing steps of the program to be executed from off-chip memories and to write same into successive addresses of the on-chip program memory by incrementing the latter addresses with each step to be written therein.

公开(公告)号：EP0614550A4

公开(公告)日：1994-07-18

申请号：EP92925068

申请日：1992-11-12

Applicant: MICROCHIP TECH INC

Inventor： CHEN CHAO-WU ,  ROSENHAGEN KURT ,  ITALIANO GREG ,  MITRA SUMIT

IPC: G06F9/24 ,  G06F9/445 ,  G06F9/06 ,  G06F12/02

CPC classification number: G06F9/24 ,  G06F9/445

Abstract: A microcontroller (10) fabricated on a semiconductor chip is adapted, when operating, to execute programs (17) and instructions and, in response, to generate control signals to selectively control external apparatus. A clock (15) generates timing signals to control the timing of the microcontroller execution and operation. An on-chip program memory (17) has space available for storing a program to be executed by the microcontroller in sequential steps in successive address locations of the program memory. An instruction stored in unerasable memory on the chip initiates self-programming of the program memory with the program to be executed by the microcontroller by enabling a pointer timed by the clock to alternately read addresses containing steps of the program to be executed from off-chip memories and to write same into successive addresses of the on-chip program memory by incrementing the latter addresses with each step to be written therein.