RT3050 datasheet(29/235 Pages) ETC1

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RT3050/52

Datasheet

Preliminary

Revision August 14, 2008

DSR3050/52_V.2.0_081408

-29-

Form No.：QS-073-F02

Rev.：1

Kept by： DCC

Ret. T ime： 5 Years

3.2 Memory Map Summary

Start

End

Size

Description

0000.0000

03FF.FFFF

64M

SDRAM

0400.0000

0FFF.FFFF

<<Reserved>>

1000.0000

1000.00FF

256

SYSCTL

1000.0100

1000.01FF

256

TIMER

1000.0200

1000.02FF

256

INTCTL

1000.0300

1000.03FF

256

MEM_CTRL (SDRAM & Flash/SRAM)

1000.0400

1000.04FF

256

PCM

1000.0500

1000.05FF

256

UART

1000.0600

1000.06FF

256

PIO

1000.0700

1000.07FF

256

Generic DMA

1000.0800

1000.08FF

256

NAND Flash Controller

1000.0900

1000.09FF

256

I2C

1000.0A00

1000.0AFF

256

I2S

1000.0B00

1000.0BFF

256

SPI

1000.0C00

1000.0CFF

256

UARTLITE

1000.0D00

100F.FFFF

<<Reserved>>

1010.0000

1010.FFFF

64K

Frame Engine

1011.0000

1011.7FFF

32K

Ethernet Switch

1011.8000

1011.9FFF

ROM

1011_a000

1011_FFFF

<<Reserved>>

1012.0000

1012.7FFF

32K

<<Reserved>>

1012.8000

1012.FFFF

32K

<<Reserved>>

1013.0000

1013.7FFF

32K

<<Reserved>>

1013.8000

1013.FFFF

32K

<<Reserved>>

1014.0000

1017.FFFF

256K

<<Reserved>>

1018.0000

101B.FFFF

256K

802.11n MAC/BBP

101C.0000

101F.FFFF

256K

USB OTG

1020.0000

1AFF.FFFF

<<Reserved>>

1B00.0000

1BFF.FFFF

16MB

External SRAM/Flash

1C00.0000

1EFF.FFFF

<<Reserved>>

1F00.0000

1FFF.FFFF

16MB(flash)

4KB(ram)

8KB(rom)

When BOOT_FROM = 2’b00,

up-to 16MB ex ternal 16-bit flash is mapped.

When BOOT_FROM = 2’b01,

up-to 8MB external 8-bit flash is mapped.

When BOOT_FROM = 2’b10,

4KB internal boot RAM is mapped for boot from

NAND application.

When BOOT_FROM = 2’b11,

8KB internal boot ROM is mapped for iNIC

application.

Note :

When boot from NAND option is enabled (set boot strapping signal: BOOT_FRO M = 2’b10), the accessing to the

external flash will be remapped to the i nternal 4KB boot SRAM located in USB OTG (0x101E_0000 – 0x101E_3FFF).

Accesses to original flash memory region outside of the 4KB boot SRAM are invalid in this boot from NAND mode.

The 4KB SRAM is also accessible from 0x101E_0000 – 0x101E_3FFF memory space.

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