VIPER Technical Manual

Detailed hardware description

 

 

VIPER address map

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PXA255

 

 

Bus/registerDescription
chip selectPhysical addresswidth

-

0xA4000000 – 0xFFFFFFFF

-

Reserved

SDCS00xA0000000 – 0xA3FFFFFC32-bitSDRAM, IC2&3

-

0x4C000000 – 0x9FFFFFFF

-

Reserved

NA

0x48000000

– 0x4BFFFFFF

32-bit

Memory Control Registers1

NA

0x44000000

– 0x47FFFFFF

32-bit

LCD Control Registers1

NA

0x40000000

– 0x43FFFFFF

32-bit

PXA255 Peripherals1

-

0x3C200400 – 0x3FFFFFFF

-

Reserved

NA

0x3C000000 – 0x3C1FFFFF8/16-bitPC/104 Memory Space

-

0x30000400

– 0x3BFFFFFF

-

Reserved

NA

0x30000000

– 0x300003FF

8/16-bit

PC/104 I/O Space

NA

0x20000000

– 0x2FFFFFFF

32-bit

CompactFLASH, PL5

 

 

 

 

 

-

0x14880000

– 0x1FFFFFFF

-

Reserved

CS5

0x14800000

– 0x1487FFFF16-bitSRAM (see page 2873H)

-

0x14500002

– 0x47FFFFFF

-

Reserved

CS5

0x14500000

– 0x14500001

16-bit

General purpose I/O (see page

 

 

 

 

57274H)

-

0x14300020

– 0x144FFFFF

-

Reserved

CS5

0x14300010

– 0x1430001F

16-bit

COM4 (see page 65275H)

CS5

0x14300000

– 0x1430000F

16-bit

COM5 (see page 6527 H)

-

0x14100006

– 0x142FFFFF

-

Reserved

CS5

0x14100004

– 0x14100005

16-bit

PC104I2 Register (see page 31277H)

CS5

0x14100002

– 0x14100003

16-bit

ICR Register (see page 31278H)

CS5

0x14100000

– 0x14100001

16-bit

PC104I1 Register (see page 31279H)

-

0x10000004

– 0x140FFFFF

-

Reserved

CS4

0x10000000

– 0x100007FF

32-bit

Ethernet Data port

-

0x0C000004 – 0x0FFFFFFF

-

Reserved

CS30x0C000000 – 0x0C000002

16-bit

USB Host Controller

-

0x08000310

– 0x0BFFFFFF

-

Reserved

CS2

0x08000300

– 0x0800030E

16-bit

Ethernet I/O Space

-

0x06000000

– 0x080002FF

-

Reserved

CS1

0x04000000

– 0x05FFFFFE

16-bit

FLASH Memory / Silicon Disk

 

 

 

 

 

-

0x00100000

– 0x03FFFFFF

-

Reserved

CS0

0x00000000

– 0x000FFFFE

16-bit

Bootloader FLASH

1Details of the internal registers are in the Intel Developer Manual on the Development Kit CD.

© 2007 Eurotech Ltd Issue E

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