Broadcom BCM2835

Broadcom BCM2835 - BCM2835 ARM Peripherals 2012 Broadcom...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
© 2012 Broadcom Corporation. All rights reserved Broadcom Europe Ltd. 406 Science Park Milton Road Cambridge CB4 0WW BCM2835 ARM Peripherals
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
06 February 2012 Broadcom Europe Ltd. 406 Science Park Milton Road Cambridge CB4 0WW Page ii © 2012 Broadcom Corporation. All rights reserved Table of Contents 1 Introduction 4 1.1 Overview 4 1.2 Address map 4 1.2.1 Diagrammatic overview 4 1.2.2 ARM virtual addresses (standard Linux kernel only) 6 1.2.3 ARM physical addresses 6 1.2.4 Bus addresses 6 1.3 Peripheral access precautions for correct memory ordering 7 2 Auxiliaries: UART1 & SPI1, SPI2 8 2.1 Overview 8 2.1.1 AUX registers 9 2.2 Mini UART 10 2.2.1 Mini UART implementation details. 11 2.2.2 Mini UART register details. 11 2.3 Universal SPI Master (2x) 20 2.3.1 SPI implementation details 20 2.3.2 Interrupts 21 2.3.3 Long bit streams 21 2.3.4 SPI register details. 22 3 BSC 28 3.1 Introduction 28 3.2 Register View 28 3.3 10 Bit Addressing 36 4 DMA Controller 38 4.1 Overview 38 4.2 DMA Controller Registers 39 4.2.1 DMA Channel Register Address Map 40 4.3 AXI Bursts 63 4.4 Error Handling 63 4.5 DMA LITE Engines 63 5 External Mass Media Controller 65 o Introduction 65 o Registers 66 6 General Purpose I/O (GPIO) 89 6.1 Register View 90 6.2 Alternative Function Assignments 102 6.3 General Purpose GPIO Clocks 105 7 Interrupts 109 7.1 Introduction 109 7.2 Interrupt pending. 110 7.3 Fast Interrupt (FIQ). 110 7.4 Interrupt priority. 110 7.5 Registers 112 8 PCM / I2S Audio 119 8.1 Block Diagram 120 8.2 Typical Timing 120 8.3 Operation 121 8.4 Software Operation 122 8.4.1 Operating in Polled mode 122 8.4.2 Operating in Interrupt mode 123
Background image of page 2
06 February 2012 Broadcom Europe Ltd. 406 Science Park Milton Road Cambridge CB4 0WW Page iii © 2012 Broadcom Corporation. All rights reserved 8.4.3 DMA 123 8.5 Error Handling. 123 8.6 PDM Input Mode Operation 124 8.7 GRAY Code Input Mode Operation 124 8.8 PCM Register Map 125 9 Pulse Width Modulator 138 9.1 Overview 138 9.2 Block Diagram 138 9.3 PWM Implementation 139 9.4 Modes of Operation 139 9.5 Quick Reference 140 9.6 Control and Status Registers 141 10 SPI 148 10.1 Introduction 148 10.2 SPI Master Mode 148 10.2.1 Standard mode 148 10.2.2 Bidirectional mode 149 10.3 LoSSI mode 150 10.3.1 Command write 150 10.3.2 Parameter write 150 10.3.3 Byte read commands 151 10.3.4 24bit read command 151 10.3.5 32bit read command 151 10.4 Block Diagram 152 10.5 SPI Register Map 152 10.6 Software Operation 158 10.6.1 Polled 158 10.6.2 Interrupt 158 10.6.3 DMA 158 10.6.4 Notes 159 11 SPI/BSC SLAVE 160 11.1 Introduction 160 11.2 Registers 160 12 System Timer 172 12.1 System Timer Registers 172 13 UART 175 13.1 Variations from the 16C650 UART 175 13.2 Primary UART Inputs and Outputs 176 13.3 UART Interrupts 176 13.4 Register View 177 14 Timer (ARM side) 196 14.1 Introduction 196 14.2 Timer Registers: 196 15 USB 200 15.1 Configuration 200 15.2 Extra / Adapted registers. 202
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
06 February 2012 Broadcom Europe Ltd. 406 Science Park Milton Road Cambridge CB4 0WW Page 4 © 2012 Broadcom Corporation. All rights reserved 1 Introduction 1.1 Overview BCM2835 contains the following peripherals which may safely be accessed by the ARM: Timers Interrupt controller GPIO USB PCM / I2S DMA controller I2C master I2C / SPI slave SPI0, SPI1, SPI2 PWM UART0, UART1
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.
  • Spring '13
  • Kevin
  • Serial Peripheral Interface Bus, Broadcom Corporation, Broadcom Europe Ltd., Road Cambridge CB4, Cambridge CB4 0WW

{[ snackBarMessage ]}

Page1 / 205

Broadcom BCM2835 - BCM2835 ARM Peripherals 2012 Broadcom...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online