![NXP Semiconductors MKW01Z128 Скачать руководство пользователя страница 277](http://html1.mh-extra.com/html/nxp-semiconductors/mkw01z128/mkw01z128_reference-manual_1722224277.webp)
• Passive input filter enable on selected pins
• Pin Muxing mode
The functions apply across all digital pin muxing modes and individual peripherals do not
override the configuration in the Pin Control register. For example, if an I
2
C function is
enabled on a pin, that does not override the pullup configuration for that pin.
When the Pin Muxing mode is configured for analog or is disabled, all the digital
functions on that pin are disabled. This includes the pullup and pulldown enables, output
buffer enable, input buffer enable, and passive filter enable.
The configuration of each Pin Control register is retained when the PORT module is
disabled.
Whenever a pin is configured in any digital pin muxing mode, the input buffer for that
pin is enabled allowing the pin state to be read via the corresponding GPIO Port Data
Input Register (GPIO_PDIR) or allowing a pin interrupt or DMA request to be generated.
If a pin is ever floating when its input buffer is enabled, then this can cause an increase in
power consumption and must be avoided. A pin can be floating due to an input pin that is
not connected or an output pin that has tri-stated (output buffer is disabled).
Enabling the internal pull resistor (or implementing an external pull resistor) will ensure a
pin does not float when its input buffer is enabled; note that the internal pull resistor is
automatically disabled whenever the output buffer is enabled allowing the Pull Enable bit
to remain set. Configuring the Pin Muxing mode to disabled or analog will disable the
pin’s input buffer and results in the lowest power consumption.
7.6.2 Global pin control
The two global pin control registers allow a single register write to update the lower half
of the pin control register on up to 16 pins, all with the same value.
The global pin control registers are designed to enable software to quickly configure
multiple pins within the one port for the same peripheral function. However, the interrupt
functions cannot be configured using the global pin control registers.
The global pin control registers are write-only registers, that always read as 0.
7.6.3 External interrupts
The external interrupt capability of the PORT module is available in all digital pin
muxing modes provided the PORT module is enabled.
Functional description
MKW01Z128 MCU Reference Manual, Rev. 3, 04/2016
146
Freescale Semiconductor, Inc.
Содержание MKW01Z128
Страница 7: ...MKW01xxRM Reference Manual Rev 3 04 2016 viii Freescale Semiconductor Inc...
Страница 11: ...MKW01xxRM Reference Manual Rev 3 04 2016 xii Freescale Semiconductor Inc...
Страница 31: ...MKW01Z128 Pins and Connections MKW01xxRM Reference Manual Rev 3 04 2016 2 8 Freescale Semiconductor Inc...
Страница 129: ...MKW01Z128 Transceiver MCU SPI Interface MKW01xxRM Reference Manual Rev 3 04 2016 8 6 Freescale Semiconductor Inc...
Страница 130: ...MKW01xxRM Reference Manual Rev 3 04 2016 Freescale Semiconductor Inc A 1 Appendix A MKW01Z128 MCU Reference Manual...
Страница 131: ...MKW01Z128 MCU Reference Manual MKW01xxRM Reference Manual Rev 3 04 2016 A 2 Freescale Semiconductor Inc...
Страница 133: ...MKW01Z128 MCU Reference Manual Rev 3 04 2016 2 Freescale Semiconductor Inc...
Страница 221: ...Private Peripheral Bus PPB memory map MKW01Z128 MCU Reference Manual Rev 3 04 2016 90 Freescale Semiconductor Inc...
Страница 233: ...Module clocks MKW01Z128 MCU Reference Manual Rev 3 04 2016 102 Freescale Semiconductor Inc...
Страница 255: ...Module operation in low power modes MKW01Z128 MCU Reference Manual Rev 3 04 2016 124 Freescale Semiconductor Inc...
Страница 279: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 148 Freescale Semiconductor Inc...
Страница 305: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 174 Freescale Semiconductor Inc...
Страница 325: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 194 Freescale Semiconductor Inc...
Страница 379: ...Application information MKW01Z128 MCU Reference Manual Rev 3 04 2016 248 Freescale Semiconductor Inc...
Страница 387: ...Memory map register descriptions MKW01Z128 MCU Reference Manual Rev 3 04 2016 256 Freescale Semiconductor Inc...
Страница 465: ...Functional Description MKW01Z128 MCU Reference Manual Rev 3 04 2016 334 Freescale Semiconductor Inc...
Страница 501: ...Initialization Application information MKW01Z128 MCU Reference Manual Rev 3 04 2016 370 Freescale Semiconductor Inc...
Страница 513: ...Interrupts MKW01Z128 MCU Reference Manual Rev 3 04 2016 382 Freescale Semiconductor Inc...
Страница 517: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 386 Freescale Semiconductor Inc...
Страница 611: ...Application information MKW01Z128 MCU Reference Manual Rev 3 04 2016 480 Freescale Semiconductor Inc...
Страница 633: ...CMP Trigger Mode MKW01Z128 MCU Reference Manual Rev 3 04 2016 502 Freescale Semiconductor Inc...
Страница 643: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 512 Freescale Semiconductor Inc...
Страница 671: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 540 Freescale Semiconductor Inc...
Страница 803: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 672 Freescale Semiconductor Inc...
Страница 843: ...Functional description MKW01Z128 MCU Reference Manual Rev 3 04 2016 712 Freescale Semiconductor Inc...
Страница 877: ...Initialization application information MKW01Z128 MCU Reference Manual Rev 3 04 2016 746 Freescale Semiconductor Inc...