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Intel® PXA26x Processor Family Developer’s Manual iii
Contents
Contents
1 Introduction...................................................................................................................................1-1
1.1 Intel® XScale™ Core Features .........................................................................................1-1
1.2 System Integration Features..............................................................................................1-2
1.2.1 Memory Controller ................................................................................................1-2
1.2.2 Clocks and Power Controllers...............................................................................1-2
1.2.3 Universal Serial Bus (USB) Client.........................................................................1-3
1.2.4 Direct Memory Access Controller (DMAC) ...........................................................1-3
1.2.5 Liquid Crystal Display (LCD) Controller ................................................................1-3
1.2.6 AC97 Controller ....................................................................................................1-3
1.2.7 Inter-Integrated Circuit Sound (I2S) Controller .....................................................1-3
1.2.8 Multimedia Card (MMC) Controller .......................................................................1-4
1.2.9 Fast Infrared (FIR) Communication Port...............................................................1-4
1.2.10 Synchronous Serial Protocol Controller (SSPC)...................................................1-4
1.2.11 Inter-Integrated Circuit (I2C) Bus Interface Unit....................................................1-4
1.2.12 General Purpose Input/Output (GPIO) .................................................................1-4
1.2.13 Universal Asynchronous Receiver/Transmitters (UARTs)....................................1-4
1.2.14 Real-Time Clock (RTC).........................................................................................1-5
1.2.15 Operating System (OS) Timers.............................................................................1-5
1.2.16 Pulse-Width Modulator (PWM) .............................................................................1-5
1.2.17 Interrupt Controller................................................................................................1-5
1.2.18 Integrated Synchronous Flash..............................................................................1-5
1.2.19 Single-ended Universal Serial Bus Client interface ..............................................1-5
1.2.20 Network Synchronous Serial Protocol Port...........................................................1-6
1.2.21 Audio Synchronous Serial Protocol Port...............................................................1-6
1.2.22 Hardware UART (HWUART) ................................................................................1-6
2 System Architecture .....................................................................................................................2-1
2.1 Overview............................................................................................................................2-1
2.2 Package Types..................................................................................................................2-2
2.3 Intel® XScale™ Microarchitecture Implementation Options..............................................2-3
2.3.1 CPU Core Fault Register — PSFS Bit..................................................................2-3
2.3.2 Coprocessor 14 Registers 0-3 – Performance Monitoring....................................2-3
2.3.3 Coprocessor 14 Register 6 and 7– Clock and Power Management.....................2-4
2.3.4 Coprocessor 15 Register 0 – ID Register Definition .............................................2-4
2.3.5 Coprocessor 15 Register 1 – P-Bit .......................................................................2-5
2.4 Input/Output Ordering ........................................................................................................2-5
2.5 Semaphores ......................................................................................................................2-6
2.6 Interrupts............................................................................................................................2-6
2.7 Reset .................................................................................................................................2-7
2.8 Internal Registers...............................................................................................................2-7
2.9 Selecting Peripherals vs. General Purpose Input/Output ..................................................2-8
2.10 Power on Reset and Boot Operation.................................................................................2-8
2.11 Power Management...........................................................................................................2-8
2.12 Pin List ...............................................................................................................................2-9
2.13 Register Address Summary.............................................................................................2-21
2.14 Memory Map....................................................................................................................2-33