Variscite VAR-320SBC Manual de usuario
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VAR-320SBC Reference Guide
Copyright©2008Variscite
2
Table of Contents
1.Revision History...................................................................................................................................................4
2.Overview.................................................................................................................................................................5
2.1.Basic................................................................................................................................................................5
2.2.Features Summary.......................................................................................................................................6
2.3.Block Diagram...............................................................................................................................................8
3.Components..........................................................................................................................................................9
3.1.MONAHANS-P CPU......................................................................................................................................9
3.1.1.Overview.................................................................................................................................................9
3.1.2.Monahans-P Block Diagram............................................................................................................10
3.1.3.Multimedia co-processor.................................................................................................................11
3.1.4.Power Management...........................................................................................................................11
3.2.Memory.........................................................................................................................................................12
3.2.1.266MHZ 32bit DDR SDRAM.............................................................................................................12
3.2.2.NAND flash...........................................................................................................................................12
3.3.Power Management IC, National LP3972.............................................................................................12
3.4.Wi2Wi WS2W0001 WIFI module.............................................................................................................12
3.5.Davicom® DM9000BEthernet controller..............................................................................................12
3.6.Connectors to base board.......................................................................................................................13
4.Interfaces..............................................................................................................................................................13
4.1.TouchScreen...............................................................................................................................................13
4.2.SSP Interface...............................................................................................................................................15
4.3.UART Ports..................................................................................................................................................16
4.4.SD/MMC Ports.............................................................................................................................................17
4.5.LCD Interface...............................................................................................................................................17
4.6.JTAG Port.....................................................................................................................................................19
4.7.AC 97 Interface..............................................................................................Error!Bookmarknotdefined.
4.8.1-Wire............................................................................................................................................................20
VAR-320SBC Reference Guide
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4.9.Camera Interface........................................................................................................................................21
4.10.PWM...........................................................................................................................................................23
4.11.Ethernet port...........................................................................................................................................23
4.12.USB............................................................................................................................................................24
4.12.1.USB 1.1 Full speed OTG and Client Controller......................................................................24
4.12.2.Universal Serial Bus Host Controller........................................................................................24
Static Memory interface (Compact Flash, Nand flash, host-bus, SRAM, VLIO)................................25
4.13.Power.........................................................................................................................................................27
4.14.Audio.........................................................................................................................................................28
4.15.I2C Bus......................................................................................................................................................29
5.Power supply and management.....................................................................................................................30
5.1.Power Supply..............................................................................................................................................30
5.2.Power consumption..................................................................................................................................30
6.Connectors..........................................................................................................................................................31
6.1.P1....................................................................................................................................................................31
6.2.P2....................................................................................................................................................................34
7.Operational Characteristics............................................................................................................................38
7.1.Absolute Maximum Rating.........................................................................Error!Bookmarknotdefined.
8.Mechanical drawing...........................................................................................................................................39
•SBC Height including BaseBoard connectors: 9mm......................................................................................39
•.......................................................................................................................................................................................40
9.Legal notice.........................................................................................................................................................40
10.Contact information.......................................................................................................................................42
VAR-320SBC Reference Guide
Copyright©2008Variscite
4
1. Revision History
Revision No. Draft Date Remarks
1.0 31/Aug/2007 Initial draft
1.1 20/Sept/2007 Ethernet controller revised
2.0 11/Feb/2008
Mechanical change. Smaller form
factor, 6x4cm
VAR-320SBC Reference Guide
Copyright©2008Variscite
5
2. Overview
2.1.Basic
The VAR-320SBC is a rich feature set, Single-Board-Computer, ideal for cost and size effective
embedded solutions where high-cpu performance and low power consumption are critical factors.
The VAR-320SBC serves as a building block and easily integrates into any embedded solution. It
includes all vital peripherals/interfaces and is ready to run any embedded operating system such
as Linux, WinCE ™ and Windows Mobile™.
Supporting products:
•Windows CE 5.0 / 6.0 BSP.Contact support for further information.
•VAR-3xxBASEBOARD – Evaluation board.
Package includes:
9Base board. Compatible with VAR-320SBC.
9Windows CE 5.0 / 6.0 run-time-image.
9Schematics
9Layout notes
9Gerber files
VAR-320SBC Reference Guide
Copyright©2008Variscite
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2.2. Features Summary
•Marvell Monahans-P (PXA320) CPU
- Up to 806 MHZ
- 2-D graphic accelerator
- 32kb/32kb Inst/ Data L1 cache
- 256KB L2 cache
- Internal 768kb SRAM
•64-256MB 266MHZ DDR SDRAM
•128Mbytes - 1Gbytes Flash Disk
•802.11 b/g WIFI module Built-In
•CRT/LCD interface. Using 2-D graphic accelerator. Up to 800x600 resolution
supported
•2 SDcard/ SDIO/MMC card interfaces
•A/D - Up to 7 channels. 10KHZ, 10Bit resolution
•Power
- National LP3972 management IC. Supports SpeedStep™ technology to achieve
the most efficient power consumption
- Lowest power solution, down to 3mw in sleep mode
- Single 3.3 - 4.8V DC power supply
•Compact Flash interface
•Intel Quick Capture ™ Camera interface
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•3 UART ports to interfaces GSM/GPRS modem, Bluetooth, IRDA, Debug port
•10/ 100 Mbit Ethernet controller
•General purpose I/O lines.
•Audio
- HI - FI stereo decoder
- Voice CODEC
- Mono output for Speaker
- Microphone input
- Headphones output
•USB
- 1 x full USB host interface
- 1 x USB Client interface
- Connects to an external USB 2.0 host controller
•Touch Screen interface
•Serial controller
- 2 x SSP interfaces
- 1 – Wire
- I2C
VAR-320SBC Reference Guide
Copyright©2008Variscite
2.3.Block Diagram
8
VAR-320SBC Reference Guide
Copyright©2008Variscite
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3. Components
3.1.MONAHANS-P CPU
3.1.1. Overview
The PXA320 processor is an integrated system-on-a-chip microprocessor for high-performance,
low-power portable handheld and handset devices. It incorporates the Intel XScale® micro
architecture with on-the-fly voltage and frequency scaling and sophisticated power management
to provide industry leading MIPS/mW performance across its wide range of operating frequencies.
The PXA320 processor complies with the ARM* Architecture V5TE instruction set (excluding
floating point instructions) and follows the ARM* programmer’s model. The PXA320 processor
Multimedia coprocessor provides enhanced Intel® Wireless MMX 2 instructions to accelerate
audio and video processing.
VAR-320SBC Reference Guide
Copyright©2008Variscite
3.1.2. Monahans-P Block Diagram
10
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