公开(公告)号：US20140019991A1

公开(公告)日：2014-01-16

申请号：US14028458

申请日：2013-09-16

Applicant: Microchip Technology Incorporated

Inventor： Joseph Julicher ,  Zacharias Marthinus Smit ,  Sean Steedman ,  Vivien Delport ,  Jerrold S. Zdenek ,  Ryan Scott Ellison ,  Eric Schroeder

IPC: G06F9/46

CPC classification number: G06F9/461

Abstract: A microcontroller device has a central processing unit (CPU); a data memory coupled with the CPU divided into a plurality of memory banks, a plurality of special function registers and general purpose registers which may be memory-mapped, wherein at least the following special function registers are memory-mapped to all memory banks a status register, a bank select register, a plurality of indirect memory address registers, a working register, and a program counter high latch; and wherein upon occurrence of a context switch, the CPU is operable to automatically save the content of the status register, the bank select register, the plurality of indirect memory address registers, the working register, and the program counter high latch, and upon return from the context switch restores the content of the status register, the bank select register, the plurality of indirect memory address registers, the working register, and the program counter high latch.

Abstract translation: 微控制器设备具有中央处理单元（CPU）; 与分配到多个存储体中的CPU耦合的数据存储器，可以被存储器映射的多个特殊功能寄存器和通用寄存器，其中至少以下特殊功能寄存器被存储器映射到所有存储体状态 寄存器，存储体选择寄存器，多个间接存储器地址寄存器，工作寄存器和程序计数器高锁存器; 并且其中在出现上下文切换时，所述CPU可操作以自动保存状态寄存器，存储体选择寄存器，多个间接存储器地址寄存器，工作寄存器和程序计数器高锁存器的内容，并且在返回时 从上下文切换恢复状态寄存器，存储体选择寄存器，多个间接存储器地址寄存器，工作寄存器和程序计数器高锁存器的内容。

公开(公告)号：US09210769B2

公开(公告)日：2015-12-08

申请号：US13831637

申请日：2013-03-15

Applicant: Microchip Technology Incorporated

Inventor： Joseph Julicher ,  Jerrold S. Zdenek

IPC: H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  H05B33/08

CPC classification number: H05B37/02 ,  H05B33/0818 ,  H05B33/0845 ,  Y02B20/346

Abstract: A light emitting diode (LED) is driven with a plurality of pulses having controllable pulse widths and positions within clock time periods that provide for both LED light intensity control and digital information communications from a single output node of an integrated circuit (IC) device. The LED light intensity is determined by the duty cycle of the pulses where the human eye integrates these light pulses from the LED into continuous light intensity levels. The digital information contained in the light output from the LED is detected by a photo-detector that converts the light pulses into electric signals that are demodulated and read by a circuit debugger and/or manufacturing test station. The aforementioned operations allow continuous visual display and data transmission using only one output node of the IC device. This is especially advantageous when using low pin count IC devices.

Abstract translation: 发光二极管（LED）由具有可控脉冲宽度的脉冲和在时钟周期内的位置驱动，多个脉冲提供来自集成电路（IC）装置的单个输出节点的LED光强度控制和数字信息通信。 LED光强度由人眼将这些光脉冲从LED整合为连续光强度的脉冲的占空比确定。 包含在LED的光输出中的数字信息由光检测器检测，该光检测器将光脉冲转换成由电路调试器和/或制造测试台解调和读取的电信号。 上述操作允许仅使用IC器件的一个输出节点进行连续可视显示和数据传输。 当使用低引脚数IC器件时，这是特别有利的。

公开(公告)号：US20140265866A1

公开(公告)日：2014-09-18

申请号：US13831637

申请日：2013-03-15

Applicant: MICROCHIP TECHNOLOGY INCORPORATED

Inventor： Joseph Julicher ,  Jerrold S. Zdenek

IPC: H05B37/02

CPC classification number: H05B37/02 ,  H05B33/0818 ,  H05B33/0845 ,  Y02B20/346

Abstract: A light emitting diode (LED) is driven with a plurality of pulses having controllable pulse widths and positions within clock time periods that provide for both LED light intensity control and digital information communications from a single output node of an integrated circuit (IC) device. The LED light intensity is determined by the duty cycle of the pulses where the human eye integrates these light pulses from the LED into continuous light intensity levels. The digital information contained in the light output from the LED is detected by a photo-detector that converts the light pulses into electric signals that are demodulated and read by a circuit debugger and/or manufacturing test station. The aforementioned operations allow continuous visual display and data transmission using only one output node of the IC device. This is especially advantageous when using low pin count IC devices.

Abstract translation: 发光二极管（LED）由具有可控脉冲宽度的脉冲和在时钟周期内的位置驱动，多个脉冲提供来自集成电路（IC）装置的单个输出节点的LED光强度控制和数字信息通信。 LED光强度由人眼将这些光脉冲从LED整合为连续光强度的脉冲的占空比确定。 包含在LED的光输出中的数字信息由光检测器检测，该光检测器将光脉冲转换成由电路调试器和/或制造测试台解调和读取的电信号。 上述操作允许仅使用IC器件的一个输出节点进行连续可视显示和数据传输。 当使用低引脚数IC器件时，这是特别有利的。