公开(公告)号：WO1997045870A1

公开(公告)日：1997-12-04

申请号：PCT/US1997007243

申请日：1997-04-11

Applicant: MICROCHIP TECHNOLOGY, INC.

Inventor： MICROCHIP TECHNOLOGY, INC. ,  FINK, Scott ,  BINGHAM, Gregory ,  HULL, Richard ,  ELLISON, Scott

IPC: H01L23/48

CPC classification number: G06F13/40 ,  G06F15/7832 ,  G06F15/7867 ,  G11C5/066

Abstract: An Integrated Circuit (IC) (10) package is disclosed comprising an IC chip (11) with a microcontroller (12) therein having an n-bit data bus, and up to n pins (34-38) electrically coupled to the microcontroller (12). The IC package also includes a control register coupled to the microcontroller for receiving enable and disable signals from the microcontroller. One or more of the pins have one or more functional blocks associated thereto. Each functional block defines a specified function for its corresponding pin. Thus, each pin having a plurality of corresponding functional blocks has a number of potential functions equal to the number of corresponding functional blocks. The specific function for a given pin is selected by the enable signal from the control register which selects the appropriate functional block upon appropriate command from the microcontroller. By using pins with multiple functions, the instant invention permits an n-bit architecture microcontroller to use less than or up to n pins.

Abstract translation: 公开了一种集成电路（IC）（10）封装，其包括其中具有n位数据总线的微控制器（12）的IC芯片（11），以及电连接到微控制器的多达n个引脚（34-38） 12）。 IC封装还包括耦合到微控制器的控制寄存器，用于接收来自微控制器的使能和禁止信号。 一个或多个销具有与其相关联的一个或多个功能块。 每个功能块为其相应的引脚定义一个指定的功能。 因此，具有多个对应功能块的每个引脚具有等于相应功能块数量的多个潜在功能。 给定引脚的具体功能由来自控制寄存器的使能信号选择，该控制寄存器根据微控制器的适当命令选择适当的功能块。 通过使用具有多个功能的引脚，本发明允许n位架构微控制器使用小于或者多于n个引脚。

公开(公告)号：EP0948764A1

公开(公告)日：1999-10-13

申请号：EP98955168.0

申请日：1998-10-28

Applicant: MICROCHIP TECHNOLOGY INC.

Inventor： HULL, Richard ,  ELLISON, Scott ,  HOFHINE, Paul

IPC: G06F11 ,  G06F1 ,  H03K19

CPC classification number: H03K19/1732 ,  G06F1/22

Abstract: A free-running microcontroller (i.e., one without any reset signal) is shown with special mode enable detect logic for placing the microcontroller into the test or special operations mode, without the benefit of a dedicated pin for such purposes. Rather, the instant invention implements the methodology of first applying a test voltage to indicate to the free-running microcontroller that the test mode is to be entered. Since the device has no reset signal to interrupt normal operation once it has begun, the test voltage is applied before the power supply VDD to ensure that the device enters test mode before it can enter normal operation.

公开(公告)号：EP0843893B1

公开(公告)日：2005-03-30

申请号：EP97918825.7

申请日：1997-04-11

Applicant: MICROCHIP TECHNOLOGY INC.

Inventor： FINK, Scott ,  BINGHAM, Gregory ,  HULL, Richard ,  ELLISON, Scott

IPC: H01L23/48 ,  H01L23/34 ,  H01L21/60

CPC classification number: G06F13/40 ,  G06F15/7832 ,  G06F15/7867 ,  G11C5/066

Abstract: An Integrated Circuit (IC) (10) package is disclosed comprising an IC chip (11) with a microcontroller (12) therein having an n-bit data bus, and up to n pins (34-38) electrically coupled to the microcontroller (12). The IC package also includes a control register coupled to the microcontroller for receiving enable and disable signals from the microcontroller. One or more of the pins have one or more functional blocks associated thereto. Each functional block defines a specified function for its corresponding pin. Thus, each pin having a plurality of corresponding functional blocks has a number of potential functions equal to the number of corresponding functional blocks. The specific function for a given pin is selected by the enable signal from the control register which selects the appropriate functional block upon appropriate command from the microcontroller. By using pins with multiple functions, the instant invention permits an n-bit architecture microcontroller to use less than or up to n pins.

公开(公告)号：EP0843893A1

公开(公告)日：1998-05-27

申请号：EP97918825.0

申请日：1997-04-11

Applicant: MICROCHIP TECHNOLOGY INC.

Inventor： FINK, Scott ,  BINGHAM, Gregory ,  HULL, Richard ,  ELLISON, Scott

IPC: G06F13 ,  G06F15 ,  G11C5

CPC classification number: G06F13/40 ,  G06F15/7832 ,  G06F15/7867 ,  G11C5/066

Abstract: An Integrated Circuit (IC) (10) package is disclosed comprising an IC chip (11) with a microcontroller (12) therein having an n-bit data bus, and up to n pins (34-38) electrically coupled to the microcontroller (12). The IC package also includes a control register coupled to the microcontroller for receiving enable and disable signals from the microcontroller. One or more of the pins have one or more functional blocks associated thereto. Each functional block defines a specified function for its corresponding pin. Thus, each pin having a plurality of corresponding functional blocks has a number of potential functions equal to the number of corresponding functional blocks. The specific function for a given pin is selected by the enable signal from the control register which selects the appropriate functional block upon appropriate command from the microcontroller. By using pins with multiple functions, the instant invention permits an n-bit architecture microcontroller to use less than or up to n pins.