Device Guide - XMC1000 - Ports

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).
Warnings
Due to technical requirements, components may contain dangerous substances. For information on the types in
question, please contact the nearest Infineon Technologies Office.
Infineon Technologies components may be used in life-support devices or systems only with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the
failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life
support devices or systems are intended to be implanted in the human body or to support and/or maintain and
sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other
persons may be endangered.
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
Similar pages