CFI/NAND
Flash
x32 DDR
VLIO/SRAM
NOR Flash
Camera
Sensor
Interface
USB
Xcvr
USB 2.0
High-Speed
Device
USB
Full-Speed
OTG with
integrated
transceiver
USB
Full-Speed
Host x2
Xcvr x1
SSP
Interface x4
802.11
Bluetooth
Digital TV
Mass Storage
GPS
UART
Interface x3
SD/SDIO/MMC
Interface x2
Multimedia and General Purpose Processing
Memory Controller
Crossbar
Switch
Touch Screen
Controller
(TSI)
interface
LCD Controller
Quick Capture
Interface:
Camera
Pre-processing
AC97 or I2S
Interface
Audio
Codec
Marvell PXA320
Core Scalable to
806 MHz
32K
L1 D$
32K
L1 I$
Level 2 Cache
(L2-cache)
256KB
3.5G Cellular
Baseband
Multi-media
Co-processor
768KB
Internal SRAM
2D Graphics/
Scaling/
Rotation
Marvell
®
Scalable Power Manager
Keypad
Controller
General
Purpose
I/O
I2C
Interface x2
PMIC
OS, Watchdog Timers, Real-time Clock,
PWM Interface, 1-wire Interface,
Consumer IR, USIM x2, JTAG
Legend:
System-on-Chip
Central Processing
Peripheral Controller
External Component
Keypads, Switches,
Rotary Encoder, LEDs
PXA320 Processor Block Diagram
FOUNDATION FOR A VERSATILE PLATFORM
The PXA320 processor integrates technologies into compact, powerful devices for network operators, enterprises,
and consumers. A new low-latency, fully connected internal memory switch eliminates memory bottlenecks, while separate
interfaces for 32-bit DDR memory and Flash memory (NANDX8, NANDX16, and NOR) provide performance for premium
phone features and platform flexibility. More and faster peripheral interfaces, including high-speed serial interfaces, enable
Wi-Fi, WiBro, and WiMAX connectivity. A built-in touch-screen and LCD controller supports high-end PDA phones and other
touch-screen driven devices. Plus support for removable memory cards makes the PXA320 processor ideal for a range
of designs needing performance and flexibility to address the needs of multiple market segments.
ENHANCED VIDEO AND AUDIO PERFORMANCE
The PXA320 processor enables next-generation, high-end, multimedia phones and PDAs, enterprise-class handhelds,
and personal media players, with D1-quality, streaming video playback at 30 fps, digital camcorder features up to CIF, 30fps,
5 MP camera capture, video telephony, and DVB-H. With a large frame buffer, new memory architecture, and support for faster
DDR memory, the PXA320 processor boosts video performance up to 40 percent over previous-generation PXA270 processors.
1
The PXA320 processor spends less time in active mode while decoding H.264 video streams, and delivers higher video
performance while lowering power consumption. And multimedia processing can take advantage of the SIMD instruction set
which includes new instructions for speech and video algorithms.
ABOUT THE PXA3xx PROCESSOR FAMILY
The PXA3xx applications processor family enables new services and capabilities across multiple device segments of the
communications and computing world. PXA3xx processors make possible a new category of converged devices that are small,
sleek, highly energy efficient, and that feature standards-based communications capabilities.
PXA3xx processor family performance enables a wide variety of features and usage models. From a low-cost, 200 MHz
smartphone to higher end, multimedia-rich feature phones, the versatile PXA3xx processor-based platform complements
a broad range of the most popular consumer electronics devices and embedded applications.
The latest advancements in trusted computing set the PXA3xx processors apart from previous-generation technologies.
The platform combines both hardware and software elements, provides robust security for consumers, and allows designers
to migrate applications to this new-generation processor family with ease. With a wide range of performance, power,
and integration levels, the PXA3xx processors meet the needs of current and future wireless devices.
1
Benchmark data collected for a QCIF stream (“foreman”) using an H.264 decoder at 624 MHz.
MARVELL [ MARVELL TECHNOLOGY GROUP LTD. ]
