Related Manuals for NXP Semiconductors Motorola DSP56602
Summary of Contents for NXP Semiconductors Motorola DSP56602
- Page 1 Freescale Semiconductor, Inc. ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 SECTION 6 GPIO MOTOROLA DSP56602 User’s Manual For More Information On This Product, Go to: www.freescale.com...
- Page 2 Freescale Semiconductor, Inc. GPIO ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 INTRODUCTION ........6-3 GPIO CONFIGURATION.
- Page 3 Freescale Semiconductor, Inc. GPIO ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 Introduction INTRODUCTION The General Purpose I/O (GPIO) port consists of three bidirectional pins, each pin separately controlled. Functionality is controlled by the following three registers: • GPIO Port E Control Register (PCRE) •...
- Page 4 Freescale Semiconductor, Inc. GPIO ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 GPIO Configuration • Timer – TCSR0—Timer Control/Status Register (GPIO on the TIO0 pin) – TCSR1—Timer Control/Status Register (GPIO on the TIO1 pin) – TCSR2—Timer Control/Status Register (GPIO on the TIO2 pin) These registers are discussed in more detail in their respective sections.
- Page 5 Freescale Semiconductor, Inc. GPIO ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 GPIO Port e Control Register (PCRE) GPIO PORT E CONTROL REGISTER (PCRE) The 16-bit read/write GPIO Port E Control Register (PCRE) controls the functionality of GPIO pins. Each of the PC bits controls the functionality of the corresponding port pin. When a PC bit is set, the corresponding port pin is tri-stated or GPIO output with open drain defined by the direction control bit.
- Page 6 Freescale Semiconductor, Inc. GPIO ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 GPIO Port E Data Register (PDRE) GPIO PORT E DATA REGISTER (PDRE) The 16-bit read/write Port E Data Register (PDRE) is used to read or write data to and from GPIO pins. The PD bits are used to read or write data from and to the corresponding port pins if they are configured as GPIO (by the PC bits in the PCR).
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