HB28D032MM2 datasheet(9/90 Pages) RENESAS

9 / 90 page

HB28H016/D032/B064/B128MM2

Rev.5.0, Jan. 2003, page 7 of 88

SPI Interface Pin Configuration

MuitiMediaCard

SPI

Pin No.

Name

Type*

Description

Name

Type

Description

RSV

Reserved for future use CS

Chip select (neg true)

CMD

I/O/PP/OD

Command/Response

Data in

SS1

Ground

Power supply

CLK

Clock

SCLK

Clock

SS2

Ground

SS2

Ground

DAT

I/O/PP

Data

O/PP

Data out

Note:

1. S: power supply; I: input; O: output; PP: push-pull; OD: open-drain; NC: No connection or V

Registers

These Hitachi MultiMediaCards contain the following information registers:

Name

Width

Type

Description

OCR

Programmed by the

manufacturer.

Read only for user

Supported voltage range, card power up status bit

CID

128

Programmed by the

manufacturer.

Read only for user

Card identification number, card individual number for

identification.

RCA

Programmed during

initialization, not readable

Relative card address, local system address of a card,

dynamically assigned by the host during initialization.

CSD

128

Programmed by the

manufacturer. Partially

programmable by the user.

Card specific data, information about the card operation

conditions.

The CID and RCA are used for identifying and addressing the MultiMediaCard. The CSD contains the

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

MultiMediaCard.

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”:

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