Intel PXA255 manual Contents

				Contents
Contents
1	Introduction			1-1
	1.1	Intel XScale® Microarchitecture Features		............1-1
	1.2	System Integration Features		1-1
		1.2.1	Memory Controller	1-2
		1.2.2	Clocks and Power Controllers	1-2
		1.2.3	Universal Serial Bus (USB) Client	1-2
		1.2.4	DMA Controller (DMAC)	1-3
		1.2.5	LCD Controller	1-3
		1.2.6	AC97 Controller	1-3
		1.2.7	Inter-IC Sound (I2S) Controller	1-3
		1.2.8	Multimedia Card (MMC) Controller	1-3
		1.2.9	Fast Infrared (FIR) Communication Port	1-3
		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	GPIO	1-4
		1.2.13	UARTs	1-4
		1.2.14	Real-Time Clock (RTC)	1-5
		1.2.15	OS Timers	1-5
		1.2.16	Pulse-Width Modulator (PWM)	1-5
		1.2.17	Interrupt Control	1-5
		1.2.18	Network Synchronous Serial Protocol Port	1-5
2	System Architecture			2-1
	2.1	Overview		2-1
	2.2	Intel XScale® Microarchitecture Implementation Options		2-2
		2.2.1	Coprocessor 7 Register 4 - PSFS Bit	2-2
		2.2.2	Coprocessor 14 Registers 0-3 - Performance Monitoring	2-3
		2.2.3	Coprocessor 14 Register 6 and 7- Clock and Power Management	2-3
		2.2.4	Coprocessor 15 Register 0 - ID Register Definition	2-3
		2.2.5	Coprocessor 15 Register 1 - P-Bit	2-4
	2.3	I/O Ordering		2-5
	2.4	Semaphores		2-5
	2.5	Interrupts		2-5
	2.6	Reset		2-6
	2.7	Internal Registers		2-7
	2.8	Selecting Peripherals vs. General Purpose I/O		2-7
	2.9	Power on Reset and Boot Operation		2-8
	2.10	Power Management		2-8
	2.11	Pin List		2-8
	2.12	Memory Map		2-18
	2.13	System Architecture Register Summary		2-21
3	Clocks and Power Manager			3-1
	3.1	Clock Manager Introduction		3-1
	3.2	Power Manager Introduction		3-2
	3.3	Clock Manager		3-2
Intel® PXA255 Processor Developer’s Manual				iii