SPI chip select register, SPICS2, SPICS1 | Arm Enterprises IM-AD1

Reference Design Example

4.4SPI chip select register

This is a 3-bit read/write register that controls the three chip select signals on the connectors J11 and J13. Writing a 1 causes the associated SPI chip select signal to go LOW.

Table 4-8 SPI chip select register bit assignment

Bit	Name	Access	Function

2	SPICS2	Read/write	0	= SPI_nCS2 is HIGH
			1	= SPI_nCS2 is LOW

1	SPICS1	Read/write	0	= SPI_nCS1 is HIGH
			1	= SPI_nCS1 is LOW

0	SPICS0	Read/write	0	= SPI_nCS0 is HIGH
			1	= SPI_nCS0 is LOW

4-14

Copyright © 2001-2003. All rights reserved.

ARM DUI 0163B

Image 60

Arm Enterprises IM-AD1 manual SPI chip select register, SPICS2, SPICS1, SPICS0

Contents

Integrator/IM-AD1 Integrator/IM-AD1 User Guide Conformance Notices Copyright 2001-2003. All rights reserved Integrator/IM-AD1 User Guide Chapter Introduction Appendix a Signal Descriptions Preface Using this book About this bookIntended audience Typographical conventions Further readingARM publications Third-party documents Feedback Feedback on this documentFeedback on the Integrator/IM-AD1 Xii Introduction About the Integrator/IM-AD1 ARM DUI 0163B Integrator/IM-AD1 layout Interface module features and architecture Features Integrator/IM-AD1 block diagram Architecture Config LED Links and LEDs Care of modules Introduction Copyright 2001-2003. All rights reserved Getting Started Fitting the interface module Assembled Integrator development system Setting up the logic module Switch 2 Closed Switch 3 Open Switch 4 Open Running the test software Hardware Reference Hardware Reference Serial interface signal assignment Signal name ConnectorUart interface Description Serial connector pinout Serial connector signal assignment Pin J18 Type Description SPI signals Signal SPI PWM interface signals Signal PWM interface Shows the signal assignment PWM connector signals Pin J14 J10 Description Stepper motor interface Functional description Stepper motor interface signal summary Therefore, with a 0.1Ω sense resistor fitted Stepper motor connectors Stepper motor interface signals Stepper motor connector signals Pin J19 J23 Description VSS Gpio connectors J16 and J17 Gpio Hardware Reference Can interface U13Buffer Can interface signal assignment Signal IMBBANK28 IMBBANK29IMBBANK30 Can connector signal assignments Pin GND ADC and DAC interfaces 10 ADC and DAC interface architecture IMABANK48 IMABANK49IMABANK50 IMABANK51 11shows the pinout of the ADC interface connector J1 12 shows the pinout of the DAC interface connector J2 Hardware Reference Copyright 2001-2003. All rights reserved Reference Design Example About the design example About PrimeCellsExample architecture Vhdl file descriptions File Description Example memory map Address assignment of logic modules Integrator system memory map Integrator/IM-AD1 memory map Logic module addresses Position Bits StackIntegrator/IM-AD1 memory map Device Address Stepperb GpioaGpiob Ssram Example APB register peripheral Logic module registersOffset address Name Type Function Oscillator divisor registers LMOSCx registers Bits Name Access Function RDWVDW Bits Name Access Function Oscillator lock registerUser LEDs control register Push button interrupt register Switches register Uart SPI chip select register SPICS2SPICS1 SPICS0 Synchronous serial port PWM controller Offset Name Access Function Address Stepper motor peripheralCont Count Stepper x control register Docount SinglestepDIR Stepx count register Stepx speed register Read data output pins Address offset Name Access Size FunctionData output set register Read data input register Data direction Gpio direction control 1 bit Ssram interface Vectored interrupt controller Interrupt sourcesInterrupt Interrupt source Source number CAN1 Reference Design Example Can reset control register CanresetCan controller interface CANxBase ADC and DAC interface 16 ADC and DAC interface registersAdcstatus ADC2BUSY Peripheral information block 18 PIB entry formatBits Name Function Signal Descriptions Expa Table A-1 AHB signal assignment Pin label Signal Description Expb Table A-2 Expb signal description Pin label Name Description Expim Table A-3 Expim signal descriptions LabelLM-EP20K1000E Description Logic analyzer connector Figure A-4 J7 pin locations Table A-4 J7 connector pinout Signal Pin CLK1 Figure A-5 Multi-ICE connector pinout Multi-ICE Jtag Mechanical Specification Figure B-1 Board dimensions top view Mechanical information Figure B-2 Bottom board dimensions viewed from top side Connector reference DB9DUALDB9STRAIGHT FCI Glossary Multi-ICE Synchronous Serial Port Index ADC CanDAC Gpio Expa A-2 Gpiodataclr Gpiodatain Gpiodataout Gpiodataset GpiodirnLmleds Lmlock LMOSC1