HB28E016BP2 View Datasheet(PDF) - Hitachi -> Renesas Electronics

Part Name

Description

Manufacturer

HB28E016BP2

Mobile Embedded Flash with MultiMediaCard™ Interface 16 Mbyte/32 Mbyte

Hitachi -> Renesas Electronics 

HB28E016/D032BP2

• TMP_WRITE_PROTECT

Temporarily protects the whole card content from being overwritten or erased (all write and erase

commands for this card are temporarily disabled). This parameter is programmable by the customer. The

default value is ‘0’ (not protected).

• FILE_FORMAT

Indicates the file format on the card. This field is read-only for ROM. The default value is ‘0’. The

following formats are defined:

File_Formats

FILE_FORMAT_GRP

0

0

0

0

1

FILE_FORMAT Type

0

Hard disk-like file system with partition table

1

DOS FAT (floppy-like) with boot sector only (no partition table)

2

Universal File Format

3

Others/Unknown

0, 1, 2, 3

Reserved

• ECC

Defines the ECC code that was used for storing data on the card. This field is used by the host (or

application) to decode the user data. The following table defines the field format.

ECC

ECC

0

1

2–3

ECC type

none (default)

BCH (542,512)

reserved

Maximum number of correctable bits

none

3

—

The content provider or customer defines which kind of error correction may be used to protect the contents

of the MultiMedaCard. This value is programmable.

• CRC7

The CRC7 contains the check sum for the CSD content. The check sum is computed according to chapter

“Cyclic Redundancy Check (CRC)”.

The user has to recalculate a new CRC7 after defining a new CSD.

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