公开(公告)号：WO1997045958A1

公开(公告)日：1997-12-04

申请号：PCT/US1997006483

申请日：1997-04-12

Applicant: MICROCHIP TECHNOLOGY, INC.

Inventor： MICROCHIP TECHNOLOGY, INC. ,  HULL, Richard, L. ,  ELLISON, Scott

IPC: H03K19/0175

CPC classification number: H03K19/01759

Abstract: The invention relates to a configurable IC device pin (14), which may be either a device clock input pin or a digital I/O pin in one embodiment, or a reset pin or a digital I/O pin in another embodiment. Both embodiments use a memory device (16) to store configuration data for the pin. Input/output logic (18) is also used in both embodiments to transfer data to and from the IC pin (14) when configured as a digital I/O pin.

Abstract translation: 本发明涉及一种可配置IC器件引脚（14），其可以是一个实施例中的器件时钟输入引脚或数字I / O引脚，或者另一实施例中的复位引脚或数字I / O引脚。 两个实施例都使用存储器件（16）来存储引脚的配置数据。 当配置为数字I / O引脚时，两个实施例中还使用输入/输出逻辑（18）来将数据传送到IC引脚（14）。

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：WO1997044905A1

公开(公告)日：1997-11-27

申请号：PCT/US1997008186

申请日：1997-05-21

Applicant: MICROCHIP TECHNOLOGY, INC.

Inventor： MICROCHIP TECHNOLOGY, INC. ,  HULL, Richard, L. ,  BINGHAM, Gregory ,  FINK, Scott ,  ROGERS, James, Clark ,  ELLISON, Scott

IPC: H03L07/00

CPC classification number: G06F15/7814

Abstract: The present invention relates to a microcontroller that may be configured to operate without the accompaniment of any external component. The microcontroller can function in a proper manner from the application of only power and signal lines with no external component required. The microcontroller (10) has integrated internal reset (14) and oscillator (16) circuitry into the microcontroller. The microcontroller has also integrated simple external components such as current limiting resistors into the microcontroller.

Abstract translation: 本发明涉及一种微控制器，其可被配置为在没有任何外部部件的伴随的情况下运行。 只有电源和信号线的应用，微控制器才能正常工作，无需外部元件。 微控制器（10）将内部复位（14）和振荡器（16）电路集成到微控制器中。 微控制器还将简单的外部元件（如限流电阻）集成到微控制器中。

公开(公告)号：WO1997045959A1

公开(公告)日：1997-12-04

申请号：PCT/US1997006482

申请日：1997-04-12

Applicant: MICROCHIP TECHNOLOGY, INC.

Inventor： MICROCHIP TECHNOLOGY, INC. ,  HULL, Richard, L. ,  BINGHAM, Gregory ,  FINK, Scott ,  ROGERS, James, Clark ,  ELLISON, Scott

IPC: H03L07/00

CPC classification number: H03K17/164 ,  G06F1/08 ,  G06F15/7814 ,  H03K3/0231 ,  Y02D10/12 ,  Y02D10/13

Abstract: The present invention relates to a microcontroller that may be configured to operate without the accompaniment of any external components. The microcontroller can function in a proper manner from the application of only power and signal lines with no external components required. The microcontroller (10) has integrated internal reset (14) and oscillator (16) circuitry into the microcontroller. The microcontroller has also integrated simple external components such as current limiting resistors and pull up and pull down resistors into the microcontroller in order to avoid application specific external components.

Abstract translation: 本发明涉及一种微控制器，其可被配置为在没有任何外部部件的伴随的情况下运行。 微控制器可以以适当的方式运行，仅应用电源和信号线，无需外部元件。 微控制器（10）将内部复位（14）和振荡器（16）电路集成到微控制器中。 微控制器还集成了简单的外部组件，例如限流电阻，并将电阻上拉和下拉到微控制器中，以避免应用特定的外部组件。

公开(公告)号：WO1997045956A1

公开(公告)日：1997-12-04

申请号：PCT/US1997007242

申请日：1997-04-12

Applicant: MICROCHIP TECHNOLOGY, INC.

Inventor： MICROCHIP TECHNOLOGY, INC. ,  COOPER, Russell, E. ,  ELLISON, Scott

IPC: H03K03/0231

CPC classification number: H03K3/0231

Abstract: An RC oscillator circuit (10) within a microcontroller chip includes first and second comparators (16, 18) having their outputs respectively coupled to set and reset inputs of a flip-flop (20) whose output is coupled to a series RC network (22, 14) for controlling charging and discharging of a capacitor (14) of the RC network between precise high and low voltage levels (V2 and V1). One input of each comparator is coupled to the RC network, while the second input is coupled to a respective modified high and low threshold voltage level (Vh', V1'), so that the oscillator signal does not exceed the precise high and low voltage levels (V2, V1). The output frequency of the oscillator may be adjusted by selecting different values of the low voltage level (V1).

Abstract translation: 微控制器芯片内的RC振荡器电路（10）包括第一和第二比较器（16,18），它们的输出分别耦合到触发器（20）的输入耦合到串联RC网络（22）的触发器（20）的设置和复位输入 ，14），用于控制RC网络的电容器（14）在精确的高电平和低电压电平（V2和V1）之间的充电和放电。 每个比较器的一个输入端耦合到RC网络，而第二个输入耦合到相应修改的高和低阈值电压电平（Vh'，V1'），使得振荡器信号不超过精确的高低电压 水平（V2，V1）。 可以通过选择不同的低电平电平（V1）来调节振荡器的输出频率。

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：EP0852786B1

公开(公告)日：2005-12-07

申请号：EP97933158.4

申请日：1997-06-27

Applicant: MICROCHIP TECHNOLOGY INC.

Inventor： DRAKE, Rodney ,  ELLISON, Scott

IPC: G09G1/02 ,  G09G3/00 ,  G09G3/36 ,  G09G3/18

CPC classification number: G09G3/18 ,  G09G2330/02

Abstract: Method and apparatus for controlling the updating of a random access memory (RAM, 137) that stores data for coding the activation of segments of one or more alphanumeric characters of a liquid crystal display (LCD) (30), to maintain substantially a direct current (DC) voltage value of zero across transparent conductive plates of the LCD (30), is performed or provided in a microcontroller having internal LCD (137) control capabilities. A type B waveform is employed for activiting the LCD (30), the waveform being of a type in which data is transmitted over frames, the data in the second frame of which is inverse of data in the first frame thereof to maintain an average DC voltage value over each two-frame portion of the waveform at substantially zero volt.

公开(公告)号：EP0847572A1

公开(公告)日：1998-06-17

申请号：EP97931321.0

申请日：1997-06-26

Applicant: MICROCHIP TECHNOLOGY INC.

Inventor： NOLAN, James, B. ,  ELLISON, Scott ,  BOLES, Brian ,  DRAKE, Rodney ,  COOPER, Russell, E.

IPC: G02F1 ,  G06F3 ,  G09G3 ,  H02M3 ,  G09G5

CPC classification number: H02M3/07 ,  G06F3/147 ,  G09G3/006 ,  G09G3/18 ,  G09G3/3696 ,  G09G5/001

Abstract: A microcontroller (50) chip (51) includes a charge pump with a switched-capacitor (83) that develops a plurality of discrete voltages. A switched-capacitor (83) charging circuit selectively charges a capacitor to produce successive charges individually retrievable from the capacitor. An LCD driver (173) selectively transmits the discrete operating voltage levels to activate the LCD (10) according to status of an external system under the control of the microcontroller (50). Voltage losses that may occur during the switched-capacitor (83) charging are compensated to maintain the levels of the discrete operating voltages free of decay. Compensation is achieved by overcharging the capacitor (83) by an amount substantially equivalent to the amount of voltage loss on the capacitor, using active feedback obtained from monitoring the charge on the capacitor.

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：EP0840956A1

公开(公告)日：1998-05-13

申请号：EP97926507.0

申请日：1997-05-21

Applicant: MICROCHIP TECHNOLOGY INC.

Inventor： HULL, Richard, L. ,  BINGHAM, Gregory ,  FINK, Scott ,  ROGERS, James, Clark ,  ELLISON, Scott

IPC: G06F1 ,  G06F15

CPC classification number: G06F15/7814

Abstract: The present invention relates to a microcontroller that may be configured to operate without the accompaniment of any external component. The microcontroller can function in a proper manner from the application of only power and signal lines with no external component required. The microcontroller (10) has integrated internal reset (14) and oscillator (16) circuitry into the microcontroller. The microcontroller has also integrated simple external components such as current limiting resistors into the microcontroller.