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

Registers

These Hitachi Mobile Embedded Flashes contain the following information registers:

Name Width

OCR 32

CID 128

RCA 16

CSD 128

Type

Programmed by the

manufacturer.

Read only for user

Programmed by the

manufacturer.

Read only for user

Programmed during

initialization, not readable

Programmed by the

manufacturer. Partially

programmable by the user.

Description

Supported voltage range, card power up status bit

Card identification number, card individual number for

identification.

Relative card address, local system address of a card,

dynamically assigned by the host during initialization.

Card specific data, information about the card operation

conditions.

The CID and RCA are used for identifying and addressing these Hitachi Mobile Embedded Flashes . The

CSD contains the card specific data record. This record is a set of information fields to define the operation

conditions of these Hitachi Mobile Embedded Flashes.

For the user, the CID is read only register. The CSD contains read only area and some of one-time or

multiple programmable area by the customer or provider. They are read out by special commands (refer to

Chapter “Commands”). The RCA registers are write only registers. Unlike CID and CSD, RCA looses its

contents after powering down the card. Its value is reassigned in each initialization cycle. The

MultiMediaCard registers usage in SPI mode is summarized in Table “MultiMediaCard Registers in SPI

Mode”:

MultiMediaCard Registers in SPI Mode

Name

OCR

CID

RCA

CSD

Available in SPI mode Width (Bytes)

Yes

4

Yes

16

No

Yes

16

Description

Operation condition register.

Card identification data (serial number, manufacturer ID

etc.)

Card specific data, information about the card operation

conditions.

9

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