XMC1000 Microcontroller Series for Industrial Applications P OR TS Digital Port Logic De vice G u ide V1.0 2013-05 Microcontrollers Edition 2013-05 Published by Infineon Technologies AG 81726 Munich, Germany © 2013 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office (www.infineon.com). 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PORTS XMC1000 Family Revision History Revision History Page or Item Subjects (major changes since previous revision) V1.0, 2013-05 Trademarks of Infineon Technologies AG AURIX™, C166™, CanPAK™, CIPOS™, CIPURSE™, EconoPACK™, CoolMOS™, CoolSET™, CORECONTROL™, CROSSAVE™, DAVE™, EasyPIM™, EconoBRIDGE™, EconoDUAL™, EconoPIM™, EiceDRIVER™, eupec™, FCOS™, HITFET™, HybridPACK™, I²RF™, ISOFACE™, IsoPACK™, MIPAQ™, ModSTACK™, my-d™, NovalithIC™, OptiMOS™, ORIGA™, PRIMARION™, PrimePACK™, PrimeSTACK™, PRO-SIL™, PROFET™, RASIC™, ReverSave™, SatRIC™, SIEGET™, SINDRION™, SIPMOS™, SmartLEWIS™, SOLID FLASH™, TEMPFET™, thinQ!™, TRENCHSTOP™, TriCore™. Other Trademarks Advance Design System™ (ADS) of Agilent Technologies, AMBA™, ARM™, MULTI-ICE™, KEIL™, PRIMECELL™, REALVIEW™, THUMB™, µVision™ of ARM Limited, UK. AUTOSAR™ is licensed by AUTOSAR development partnership. Bluetooth™ of Bluetooth SIG Inc. CAT-iq™ of DECT Forum. COLOSSUS™, FirstGPS™ of Trimble Navigation Ltd. EMV™ of EMVCo, LLC (Visa Holdings Inc.). EPCOS™ of Epcos AG. FLEXGO™ of Microsoft Corporation. FlexRay™ is licensed by FlexRay Consortium. HYPERTERMINAL™ of Hilgraeve Incorporated. IEC™ of Commission Electrotechnique Internationale. IrDA™ of Infrared Data Association Corporation. ISO™ of INTERNATIONAL ORGANIZATION FOR STANDARDIZATION. MATLAB™ of MathWorks, Inc. MAXIM™ of Maxim Integrated Products, Inc. MICROTEC™, NUCLEUS™ of Mentor Graphics Corporation. Mifare™ of NXP. MIPI™ of MIPI Alliance, Inc. MIPS™ of MIPS Technologies, Inc., USA. muRata™ of MURATA MANUFACTURING CO., MICROWAVE OFFICE™ (MWO) of Applied Wave Research Inc., OmniVision™ of OmniVision Technologies, Inc. Openwave™ Openwave Systems Inc. RED HAT™ Red Hat, Inc. RFMD™ RF Micro Devices, Inc. SIRIUS™ of Sirius Satellite Radio Inc. SOLARIS™ of Sun Microsystems, Inc. SPANSION™ of Spansion LLC Ltd. Symbian™ of Symbian Software Limited. TAIYO YUDEN™ of Taiyo Yuden Co. TEAKLITE™ of CEVA, Inc. TEKTRONIX™ of Tektronix Inc. TOKO™ of TOKO KABUSHIKI KAISHA TA. UNIX™ of X/Open Company Limited. VERILOG™, PALLADIUM™ of Cadence Design Systems, Inc. VLYNQ™ of Texas Instruments Incorporated. VXWORKS™, WIND RIVER™ of WIND RIVER SYSTEMS, INC. ZETEX™ of Diodes Zetex Limited. Last Trademarks Update 2011-02-24 PORTS XMC1000 Family Table of Contents Table of Contents Table of Contents .................................................................................................................................................. 4 Digital Port Logic ................................................................................................................................................... 5 1 General Purpose I/O Port .................................................................................................................. 6 2 2.1 2.2 2.3 2.3.1 2.3.2 2.4 Input ..................................................................................................................................................... 7 Input Pin Setup ..................................................................................................................................... 7 Available Input Pins .............................................................................................................................. 7 Pad Hysteresis ..................................................................................................................................... 7 Pad Hysteresis Setup ........................................................................................................................... 8 Pins Available for Pad Hysteresis ........................................................................................................ 8 Internal Pull Devices ............................................................................................................................ 8 3 3.1 3.2 3.3 3.4 Output .................................................................................................................................................. 9 Output Pin Setup .................................................................................................................................. 9 Bit-banding support in XMC1000 ......................................................................................................... 9 Available Output Pins ........................................................................................................................... 9 Output Driver Mode ............................................................................................................................ 10 4 4.1 4.2 Alternate Output ............................................................................................................................... 11 Set up Alternate Output Pin ............................................................................................................... 11 Available Alternate Output Pins ......................................................................................................... 11 5 5.1 5.2 Hardware Controlled I/O .................................................................................................................. 12 Hardware Control Setup ..................................................................................................................... 12 Hardware Pins for Peripherals ........................................................................................................... 12 6 6.1 Power Save Mode ............................................................................................................................. 14 Configure Pin in Power Save Mode ................................................................................................... 14 7 7.1 7.2 7.3 7.4 7.5 7.6 Ports Configuration during Power-up until end of Startup Software execution ....................... 15 User Productive mode ........................................................................................................................ 15 SSC BSL mode .................................................................................................................................. 17 Debug mode (SWD) ........................................................................................................................... 18 Debug mode (SPD) ............................................................................................................................ 19 ASC BSL half-duplex mode ............................................................................................................... 20 ASC BSL full-duplex mode ................................................................................................................. 21 Device Guide 4 V1.0, 2013-05 PORTS XMC1000 Family General Purpose I/O Port Digital Port Logic Device Guide 5 V1.0, 2013-05 PORTS XMC1000 Family General Purpose I/O Port 1 General Purpose I/O Port The basic feature of the Ports is the General Purpose Input and Output functionality. The following sections describe how to configure the pins for input, output and alternate output functions. Figure 1 Block Diagram of a Digital Port Pin Device Guide 6 V1.0, 2013-05 PORTS XMC1000 Family Input 2 Input 2.1 Input Pin Setup The following C code snippet shows how to configure a pin as an input. // Set Port P0.0 as input PORT0->IOCR0 &= ~PORT0_IOCR0_PC0_Msk; PORT0->IOCR0 |= 0x0 << PORT0_IOCR0_PC0_Pos; P0_0_read = PORT0->IN & PORT0_IN_P0_Msk; // Returns input level Note: A Ports header file (GPIO.h) is available in the DAVE Easy Start project. 2.2 Available Input Pins Table 1 shows the available pins in the different packages of the XMC1xxx, configurable as an input. Table 1 Input pins available for TSSOP-38, 28 and 16 Port TSSOP-38 TSSOP-28 TSSOP-16 P0 P0.0 - P0.15 P0.0, P0.4 - P0.10, P0.12 - P0.15 P0.0, P0.5 - P0.9, P0.14 - P0.15 P1 P1.0 - P1.5 P1.0 - P1.3 - P2 P2.0 - P2.11 P2.0 - P2.2, P2.5 - P2.11 P2.0, P2.6 - P2.11 Note: P2.2 – P2.9 are analog inputs. 2.3 Pad Hysteresis Figure 2 shows the standard hysteresis and large hysteresis characteristics with respect to logic and voltage. Figure 2 Graphical representation of Standard and Large Hysteresis characteristics Pad hysteresis can be configured to standard or large hysteresis based on application needs, for example in a touch-sensing application. For detailed example on pad hysteresis, please refer to Scheme A and Scheme B in the LED and Touch-Sense chapter of the XMC1xxx Reference Manual. Device Guide 7 V1.0, 2013-05 PORTS XMC1000 Family Input 2.3.1 Pad Hysteresis Setup The following C code snippets demonstrate how to configure the pad to standard and large hysteresis. Note: A Ports header file (GPIO.h) is available in the DAVE Easy Start project. // Standard hysteresis for Port P0.1 PORT0->PHCR0 &= ~PORT0_PHCR0_PH1_Msk; // Large hysteresis for Port P0.1 PORT0->PHCR0 |= PORT0_PHCR0_PH1_Msk; 2.3.2 Pins Available for Pad Hysteresis Pad hysteresis control is available for all of the pins in the XMC1xxx package. 2.4 Internal Pull Devices The following C code snippets demonstrate how to configure the internal pull devices. Note: A Ports header file (GPIO.h) is available in the DAVE Easy Start project. // Internal pull-down device active (Direct Input) for Port P0.1 PORT0->IOCR0 &= ~PORT0_IOCR0_PC1_Msk; PORT0->IOCR0 |= 0x1 << PORT0_IOCR0_PC1_Pos; // Internal pull-up device active (Direct Input) for Port P0.1 PORT0->IOCR0 &= ~PORT0_IOCR0_PC1_Msk; PORT0->IOCR0 |= 0x2 << PORT0_IOCR0_PC1_Pos; Device Guide 8 V1.0, 2013-05 PORTS XMC1000 Family Output 3 Output 3.1 Output Pin Setup The following C code snippet shows how to configure a pin as an output. Note: A Ports header file (GPIO.h) is available in the DAVE Easy Start project. // Set Port P0.0 as output PORT0->IOCR0 &= ~PORT0_IOCR0_PC0_Msk; PORT0->IOCR0 |= 0x10 << PORT0_IOCR0_PC0_Pos; // Set 1XXXXB for output 3.2 Bit-banding support in XMC1000 XMC1000 runs on an ARM Cortex-M0 processor that does not support bit-banding. However, direct bit manipulation of the bit-banding operation can be achieved using the Output Modification Register Pn_OMR, which supports: set clear toggle single or multiple Port pins in a single access The following C code snippets demonstrate how to program a single Port pin using the output modification register. Note: A Ports header file (GPIO.h) is available in the DAVE Easy Start project. // Set Port P0.0 in output register PORT0->OMR = PORT0_OMR_PS0_Msk; // Reset Port P0.0 in output register PORT0->OMR = PORT0_OMR_PR0_Msk; // Toggle Port P0.0 in output register PORT0->OMR = PORT0_OMR_PS0_Msk | PORT0_OMR_PR0_Msk; 3.3 Available Output Pins Table 2 shows the available pins in the different packages of the XMC1xxx that are configurable as an output. Table 2 Output pins available for TSSOP-38, 28 and 16 Port TSSOP-38 TSSOP-28 TSSOP-16 P0 P0.0 - P0.15 P0.0, P0.4 - P0.10, P0.12 - P0.15 P0.0, P0.5 - P0.9, P0.14 - P0.15 P1 P1.0 - P1.5 P1.0 - P1.3 - P2 P2.0 - P2.1, P2.10 - P2.11 P2.0 - P2.1, P2.10 - P2.11 P2.0, P2.10 - P2.11 Device Guide 9 V1.0, 2013-05 PORTS XMC1000 Family Output 3.4 Output Driver Mode The following C code snippets demonstrate how to configure the output driver modes. Note: A Ports header file (GPIO.h) is available in the DAVE Easy Start project. // Push-pull mode for Port P0.1 PORT0->IOCR0 &= ~PORT0_IOCR0_PC1_Msk; PORT0->IOCR0 |= 0x10 << PORT0_IOCR0_PC1_Pos; // Set 10XXXB for Push-pull mode // Open-drain mode for Port P0.1 PORT0->IOCR0 &= ~PORT0_IOCR0_PC1_Msk; PORT0->IOCR0 |= 0x18 << PORT0_IOCR0_PC1_Pos; // Set 11XXXB for Open-drain mode Device Guide 10 V1.0, 2013-05 PORTS XMC1000 Family Alternate Output 4 Alternate Output 4.1 Set up Alternate Output Pin The following C code snippet shows how to configure a pin as an alternate output. Note: A Ports header file (GPIO.h) is available in the DAVE Easy Start project. // Set Port P0.0 as alternate output function 1 PORT0->IOCR0 &= ~PORT0_IOCR0_PC0_Msk; PORT0->IOCR0 |= 0x11 << PORT0_IOCR0_PC0_Pos; A detailed connectivity list of alternate functions to the Port pins is available in the ‘Port I/O Functions Table’ in the Ports Chapter of the XMC1xxx Reference Manual. 4.2 Available Alternate Output Pins For the available pins configurable as an alternate output, please refer to Table 2. Device Guide 11 V1.0, 2013-05 PORTS XMC1000 Family Hardware Controlled I/O 5 Hardware Controlled I/O 5.1 Hardware Control Setup The following C code snippets show how to assign hardware control of a pin to a peripheral. Note: A Ports header file (GPIO.h) is available in the DAVE Easy Start project. // Select hardware control path HW0 for Port P1.0 PORT1->HWSEL &= ~PORT1_HWSEL_HW0_Msk; PORT1->HWSEL |= 0x1 << PORT1_HWSEL_HW0_Pos; // Select hardware control path HW1 for Port P1.0 PORT1->HWSEL &= ~PORT1_HWSEL_HW0_Msk; PORT1->HWSEL |= 0x2 << PORT1_HWSEL_HW0_Pos; 5.2 Hardware Pins for Peripherals Hardware Pins for Universal Serial Interface Channel (USIC) Figure 3 Hardware input and output pins for USIC Hardware Pins for LED and Touch-Sense (LEDTS) Figure 4 Hardware input and output pins for LEDTS Device Guide 12 V1.0, 2013-05 PORTS XMC1000 Family Hardware Controlled I/O Hardware Pins for Capture/Compare Unit 4 (CCU4) Figure 5 Hardware pins for CCU4 pull-up/down and direction control Hardware Pins for Brightness and Color Control Unit (BCCU) Figure 6 Hardware pins for BCCU pull-up/down control Hardware Pins for Comparator Control Unit (CMPCU) Figure 7 Hardware pins for CMPCU pull-up/down control Device Guide 13 V1.0, 2013-05 PORTS XMC1000 Family Power Save Mode 6 Power Save Mode In Deep-sleep mode, when pin Power Save mode is enabled: Output Output driver tri-state Input Pull devices off Input Schmitt-Trigger off Input Input signal driven statically high or low, software defined by Pn_OUT 6.1 Configure Pin in Power Save Mode The following C code snippets show how to enable and disable pin Power Save mode. Note: A Ports header file (GPIO.h) is available in the DAVE Easy Start project. // Enable pin power save for Port P0.0 PORT0->PPS |= PORT0_PPS_PPS0_Msk; // Disable pin power save for Port P0.0 PORT0->PPS &= ~PORT0_PPS_PPS0_Msk; The following C code snippets show how to configure pin power save behavior in Deep-Sleep mode. Note: A Ports header file (GPIO.h) is available in the DAVE Easy Start project. // Set pin power save behavior to Input value = Pn_OUT for Port P0.0 PORT0->IOCR0 &= ~PORT0_IOCR0_PC0_Msk; PORT0->IOCR0 |= 0x0 << PORT0_IOCR0_PC0_Pos; // Set pin power save behavior for output pin, Port P0.0 PORT0->IOCR0 &= ~PORT0_IOCR0_PC0_Msk; PORT0->IOCR0 |= 0x10 << PORT0_IOCR0_PC0_Pos; Device Guide 14 V1.0, 2013-05 PORTS XMC1000 Family Port Configuration during Power-up until end of Startup Software (SSW) Execution 7 Port Configuration during Power-up until end of Startup Software (SSW) Execution The tables that follow illustrate the Ports driver and pull configuration during power-up, after reset, and at the end of Startup Software (SSW) execution. Note: The Port/pin configuration at the end of SSW execution will differ depending on the boot modes selected, as described in each section. 7.1 User Productive mode Table 3 shows the Port/pin configuration for User Productive mode. Table 3 Port/Pin Configuration for User Productive mode Port/Pin During Power up After Reset (Low) At the end of SSW execution P0, except P0.8 and P0.15 P0.8 P0.15 Device Guide 15 V1.0, 2013-05 PORTS XMC1000 Family Port Configuration during Power-up until end of Startup Software (SSW) Execution Port/Pin During Power up After Reset (Low) At the end of SSW execution P1 P2 Device Guide 16 V1.0, 2013-05 PORTS XMC1000 Family Port Configuration during Power-up until end of Startup Software (SSW) Execution 7.2 SSC BSL mode Table 4 shows the Port pins used for the SSC BSL mode and the corresponding pin configuration. The other Port pins not referenced in the table follow the configuration given for User Productive mode (see Table 3). Table 4 Port/Pin Configuration for SSC BSL mode Port/Pin During Power up After Reset (Low) During SSC BSL mode P0.13 CS(O) for SSC BSL mode P0.14 SCLK(O) for SSC BSL mode P0.15 DATA(I/O) for SSC BSL mode Device Guide 17 V1.0, 2013-05 PORTS XMC1000 Family Port Configuration during Power-up until end of Startup Software (SSW) Execution 7.3 Debug mode (SWD) Table 5 shows the Port pins used for the Debug mode (SWD) and the corresponding pin configuration. The other Port pins not referenced in the table follow the configuration given for User Productive mode (see Table 3). Table 5 Port/Pin Configuration for Debug mode (SWD) Port/Pin During Power up After Reset (Low) During Debug mode (SWD) P0.14 SWDIO_0 for Debug mode (SWD) P0.15 SWDCLK_0 for Debug mode (SWD) P1.2 SWDCLK_1 for Debug mode (SWD) P1.3 SWDIO_1 for Debug mode (SWD) Device Guide 18 V1.0, 2013-05 PORTS XMC1000 Family Port Configuration during Power-up until end of Startup Software (SSW) Execution 7.4 Debug mode (SPD) Table 6 shows the Port pins used for the Debug mode (SPD) and the corresponding pin configuration. The other Port pins not referenced in the table follow the configuration given for User Productive mode (see Table 3). Table 6 Port/Pin Configuration for Debug mode (SPD) Port/Pin During Power up After Reset (Low) During Debug mode (SPD) P0.14 SPD_0 for Debug mode (SPD) P1.3 SPD_1 for Debug mode (SPD) Device Guide 19 V1.0, 2013-05 PORTS XMC1000 Family Port Configuration during Power-up until end of Startup Software (SSW) Execution 7.5 ASC BSL half-duplex mode Table 7 shows the Port pins used for the ASC BSL half-duplex mode and the corresponding pin configuration. The other Port pins not referenced in the table follow the configuration given for User Productive mode (see Table 3). Table 7 Port/Pin Configuration for ASC BSL half-duplex mode Port/Pin During Power up After Reset (Low) P0.14 During ASC BSL halfduplex mode If channel 0 is selected, RX/TX for ASC BSL halfduplex mode Otherwise, P1.3 If channel 1 is selected, RX/TX for ASC BSL halfduplex mode Otherwise, Device Guide 20 V1.0, 2013-05 PORTS XMC1000 Family Port Configuration during Power-up until end of Startup Software (SSW) Execution Port/Pin 7.6 During Power up After Reset (Low) During ASC BSL halfduplex mode ASC BSL full-duplex mode Table 8 shows the Port pins used for the ASC BSL full-duplex mode and the corresponding pin configuration. The other Port pins not referenced in the table follow the configuration given for User Productive mode (see Table 3). Table 8 Port/Pin Configuration for ASC BSL full-duplex mode Port/Pin During Power up After Reset (Low) P0.14 During ASC BSL fullduplex mode If channel 0 is selected, RX for ASC BSL full-duplex mode P0.15 If channel 0 is selected, TX for ASC BSL full-duplex mode Otherwise, Device Guide 21 V1.0, 2013-05 PORTS XMC1000 Family Port Configuration during Power-up until end of Startup Software (SSW) Execution Port/Pin During Power up After Reset (Low) P1.2 During ASC BSL fullduplex mode If channel 1 is selected, TX for ASC BSL full-duplex mode P1.3 If channel 1 is selected, RX for ASC BSL full-duplex mode Otherwise, Device Guide 22 V1.0, 2013-05 w w w . i n f i n e o n . c o m Published by Infineon Technologies AG