TMS320DM355 datasheet(93/163 Pages) TI1

93 / 163 page

TMS320DM355

www.ti.com

SPRS463G – SEPTEMBER 2007 – REVISED JUNE 2010

Table 3-24. UBL Signature and Special Modes for NAND Boot Mode

MODE

VALUE(1)

DESCRIPTION

UBL_MAGIC_SAFE

0xA1AC ED00

Safe boot mode

UBL_MAGIC_DMA

0xA1AC ED11

DMA boot mode

UBL_MAGIC_IC

0xA1AC ED22

I Cache boot mode

UBL_MAGIC_FAST

0xA1AC ED33

Fast EMIF boot mode

UBL_MAGIC_DMA_IC

0xA1AC ED44

DMA + I Cache boot mode

UBL_MAGIC_DMA_IC_FAST

0xA1AC ED55

DMA + I Cache + Fast EMIF boot mode

UBL_MAGIC_SPI_PARAMS

0xA1AC EDAA

NAND parameters from SPI EEPROM

(1)

The values listed only apply when operating in compatibility mode. These values follow the form 0xA1BCEDxx when operating in

standard mode.

Example: UBL_MAGIC_SAFE VALUE = 0xA1ACED00; Safe boot mode will configure the device to run in safe boot mode and in

compatibility mode. However, when using standard mode, the value should be 0xA1BCD00.

Table 3-25. NAND Layout (Compatibility Mode)

512 Byte Page Size

2048 Byte Page Size

512 bytes Data

16 bytes ECC Data

512 bytes Data

16 bytes ECC Data

512 bytes Data

16 bytes ECC Data

512 bytes Data

16 bytes ECC Data

Table 3-26. NAND Layout (Standard Mode)

512 Byte Page Size

2048 Byte Page Size

4096 Byte Page Size

512 bytes Data

2048 bytes Data

4096 bytes Data

16 bytes ECC Data

64 bytes ECC Data

128 bytes ECC Data

Detailed Device Description

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