Owner's manual

ManualsBrandsCirrus Logic ManualsHardwareEP93xx

161

162

163

164

165

166

167

168

169

170

Table Of Contents

Contents
- Figures
- Tables
- Revision History
Preface
- P.1 About the EP93xx User’s Guide
- P.2 Related Documents from Cirrus Logic
- P.3 Reference Documents
- P.4 Notational Conventions
- P.5 Register Example
Introduction
- 1.1 Introduction
- 1.2 EP93xx Features
- 1.3 EP93xx Processor Applications
- 1.4 EP93xx Processor Highlights
ARM920T Core and Advanced High-Speed Bus (AHB)
- 2.1 Introduction
- 2.2 Overview: ARM920T Core
- 2.3 AHB Decoder
MaverickCrunch Co-Processor
- 3.1 Introduction
- 3.2 Programming Examples
  - 3.2.1 Example 1
  - 3.2.2 Example 2
    - 3.2.2.1 C Code
    - 3.2.2.2 MaverickCrunch Assembly Language Instructions
- 3.3 DSPSC Register
- 3.4 ARM Co-Processor Instruction Format
- 3.5 Instruction Set for the MaverickCrunch Co-Processor
Boot ROM
- 4.1 Introduction
  - 4.1.1 Boot ROM Hardware Operational Overview
    - 4.1.1.1 Memory Map
  - 4.1.2 Boot ROM Software Operational Overview
- 4.2 Boot Options
System Controller
- 5.1 Introduction
- 5.2 Registers
Vectored Interrupt Controller
- 6.1 Introduction
- 6.2 Registers
Raster Engine With Analog/LCD Integrated Timing and Interface
- 7.1 Introduction
- 7.2 Features
- 7.3 Raster Engine Features Overview
- 7.4 Functional Details
- 7.5 Registers
Graphics Accelerator
- 8.1 Overview
- 8.2 Block Processing Modes
- 8.3 Line Draws
  - 8.3.1 Breshenham Line Draws
  - 8.3.2 Pixel Step Line Draws
- 8.4 Memory Organization for Graphics Accelerator
- 8.5 Register Programming
  - 8.5.1 Word Count
    - 8.5.1.1 Example: 8 BPP mode
    - 8.5.1.2 Example: 24 BPP (packed) mode
  - 8.5.2 Pixel End and Start
- 8.6 Register Usage
- 8.7 Registers
1/10/100 Mbps Ethernet LAN Controller
- 9.1 Introduction
- 9.2 Descriptor Processor
- 9.3 Registers
DMA Controller
- 10.1 Introduction
- 10.2 Registers
  - 10.2.1 DMA Controller Memory Map
  - 10.2.2 Internal M2P/P2M Channel Register Map
Universal Serial Bus Host Controller
- 11.1 Introduction
  - 11.1.1 Features
- 11.2 Overview
- 11.3 Registers
Static Memory Controller
- 12.1 Introduction
- 12.2 Static Memory Controller Operation
- 12.3 PCMCIA Interface (EP9315 Processor Only)
- 12.4 PC Card Memory-Mode Enable Signals
- 12.5 PC Card Memory Mapping
- 12.6 Registers
  - 12.6.1 Bank Configuration Registers
  - 12.6.2 PCMCIA Configuration Registers (EP9315 Processor Only)
SDRAM, SyncROM, and SyncFLASH Controller
- 13.1 Introduction
- 13.2 Booting from SyncROM or SyncFLASH
- 13.3 Address Pin Usage
- 13.4 SDRAM Initialization
- 13.5 Programming Mode Register: SDRAM Or SyncROM Device
- 13.6 SDRAM Self Refresh
  - 13.6.1 Entering Self Refresh Mode
  - 13.6.2 Exiting Self Refresh Mode
- 13.7 Programming Registers: SyncFLASH Device
- 13.8 External Synchronous Memory System
  - 13.8.1 Chip Select SDCSN[3:0] Decoding
  - 13.8.2 Address/Data/Control Required by Memory System
- 13.9 Registers
UART1 With HDLC and Modem Control Signals
- 14.1 Introduction
- 14.2 UART Overview
- 14.3 Modem
- 14.4 HDLC
- 14.5 UART1 Package Dependency
  - 14.5.1 Clocking Requirements
  - 14.5.2 Bus Bandwidth Requirements
- 14.1 Registers
UART2
- 15.1 Introduction
- 15.2 IrDA SIR Block
- 15.3 UART2 Package Dependency
  - 15.3.1 Clocking Requirements
  - 15.3.2 Bus Bandwidth Requirements
- 15.4 Registers
UART3 With HDLC Encoder
- 16.1 Introduction
- 16.2 Implementation Details
- 16.3 Registers
IrDA
- 17.1 Introduction
- 17.2 IrDA Interfaces
- 17.3 Shared IrDA Interface Feature
- 17.4 Medium IrDA Specific Features
  - 17.4.1 Introduction
    - 17.4.1.1 Bit Encoding
    - 17.4.1.2 Frame Format
  - 17.4.2 Functional Description
- 17.5 Fast IrDA Specific Features
- 17.6 Registers
Timers
- 18.1 Introduction
- 18.2 Registers
Watchdog Timer
- 19.1 Introduction
- 19.1 Registers
Real Time Clock With Software Trim
- 20.1 Introduction
  - 20.1.1 Software Trim
  - 20.1.2 Reset Control
- 20.1 Registers
I2S Controller
- 21.1 Introduction
- 21.2 I2S Transmitter Channel Overview
- 21.3 I2S Receiver Channel Overview
  - 21.3.1 Receiver FIFO’s
- 21.4 I2S Master Clock Generation
- 21.5 I2S Bit Clock Rate Generation
  - 21.5.1 Example of the Bit Clock Generation.
  - 21.5.2 Example of Right Justified LRCK format
- 21.6 Interrupts
- 21.7 Registers
AC’97 Controller
- 22.1 Introduction
- 22.2 Interrupts
  - 22.2.1 Channel Interrupts
  - 22.2.2 Global Interrupts
- 22.3 System Loopback Testing
- 22.4 Registers
Synchronous Serial Port
- 23.1 Introduction
- 23.2 Features
- 23.3 SSP Functionality
- 23.4 SSP Pin Multiplex
- 23.5 Configuring the SSP
- 23.6 Registers
Pulse Width Modulator
- 24.1 Introduction
- 24.2 Theory of Operation
  - 24.2.1 PWM Programming Examples
  - 24.2.2 Programming Rules
- 24.3 Registers
Analog Touch Screen Interface
- 25.1 Introduction
- 25.2 Touch Screen Controller Operation
- 25.3 Registers
Keypad Interface
- 26.1 Introduction
- 26.2 Theory of Operation
- 26.3 Registers
IDE Interface
- 27.1 Introduction
- 27.2 Theory of Operation
- 27.3 Registers
GPIO Interface
- 28.1 Introduction
- 28.2 Registers
Security
- 29.1 Introduction
- 29.2 Features
- 29.3 Contact Information
- 29.4 Registers
Glossary
EP93XX Register List

6-8 DS785UM1

Vectored Interrupt Controller

EP93xx User’s Guide

INT_DSP ARM Core interrupt.

GPIOINTR Combined Interrupt from Any Bit in Ports A or B. See

Chapter 28, "GPIO Interface"

I2SINTR Combined Interrupt of All Sources from the I

S Controller.

See Chapter 21, "I

S Controller"

6.2 Registers

The 2 VIC blocks have an identical register definition. The offset from the respective base

address is the same:

• VIC1 Base address: 0x800B_0000

• VIC2 Base Address: 0x800C_0000

Using the ARM MMU, it is possible to remap the VIC base address to 0xFFFF_F000, giving a

lower interrupt latency. Table 6-2 indicates the address offset from the base address.

Table 6-2. VICx Register Summary

Address Type Width Reset Value Name Description

VIC base + 0000 Read 32 0x0000_0000 VICxIRQStatus IRQ status register

VIC base + 0004 Read 32 0x0000_0000 VICxFIQStatus FIQ status register

VIC base + 0008 Read 32 - VICxRawIntr Raw interrupt status register

VIC base + 000C Read /Write 32 0x0000_0000 VICxIntSelect Interrupt select register

VIC base + 0010 Read /Write 32 0x0000_0000 VICxIntEnable Interrupt enable register

VIC base + 0014 Write 32 - VICxIntEnClear Interrupt enable clear register

VIC base + 0018 Read /Write 32 0x0000_0000 VICxSoftInt Software interrupt register

VIC base + 001C Read /Write 32 - VICxSoftIntClear Software interrupt clear register

VIC base + 0020 Read /Write 1 0x0 VICxProtection Protection enable register

VIC base + 0030 Read /Write 32 0x0000_0000 VICxVectAddr Vector address register

VIC base + 0034 Read /Write 32 0x0000_0000 VICxDefVectAddr Default vector address register

VIC base + 0100 Read /Write 32 0x0000_0000 VICxVectAddr0 Vector address 0 register

VIC base + 0104 Read /Write 32 0x0000_0000 VICxVectAddr1, Vector address 1 register

VIC base + 0108 Read /Write 32 0x0000_0000 VICxVectAddr2, Vector address 2 register

VIC base + 010C Read /Write 32 0x0000_0000 VICxVectAddr3, Vector address 3 register

VIC base + 0110 Read /Write 32 0x0000_0000 VICxVectAddr4, Vector address 4 register

VIC base + 0114 Read /Write 32 0x0000_0000 VICxVectAddr5, Vector address 5 register

VIC base + 0118 Read /Write 32 0x0000_0000 VICxVectAddr6 Vector address 6 register

VIC base + 011C Read /Write 32 0x0000_0000 VICxVectAddr7, Vector address 7 register

VIC base + 0120 Read /Write 32 0x0000_0000 VICxVectAddr8, Vector address 8 register

VIC base + 0124 Read /Write 32 0x0000_0000 VICxVectAdd9, Vector address 9 register

VIC base + 0128 Read /Write 32 0x0000_0000 VICxVectAddr10, Vector address 10 register

VIC base + 012C Read /Write 32 0x0000_0000 VICxVectAddr11, Vector address 11 register

VIC base + 0130 Read /Write 32 0x0000_0000 VICxVectAdd12, Vector address 12 register

VIC base + 0134 Read /Write 32 0x0000_0000 VICxVectAddr13, Vector address 13 register

VIC base + 0138 Read /Write 32 0x0000_0000 VICxVectAddr14, Vector address 14 register

VIC base + 013C Read /Write 32 0x0000_0000 VICxVectAddr15 Vector address 15 register

VIC base + 0200 Read /Write 6 0x00 VICxVectCntl0, Vector control 0 register

VIC base + 0204 Read /Write 6 0x00 VICxVectCntl1, Vector control 1 register