HB28K032MM3 datasheet(85/91 Pages) RENESAS

85 / 91 page

HB28K032/L064/J128/J256/J512MM3, HB28K032/L064/J128/J256RM3

Rev.0.02, Sep.15.2004, page 85 of 89

Abbreviations and Terms

Abbreviations

Terms

<n>

Argument of a command or data field.

CMD<n>

MultiMediaCard bus command <n>. See Command.

Push Pull, output driver type with low impedance driver capability for 0 and 1.

Open Drain, output driver type with low impedance driver capability for 0 and high

impedance driver capability for 1.

CSD

Card specific data, MultiMediaCard register to store operating parameters.

CID

Card identification data, MultiMediaCard register for the card initialization procedure.

RCA

Relative card address, MultiMediaCard register which contains the current card

address of an initialized MultiMediaCard.

OCR

Operation condition register, MultiMediaCard register that contains the voltage window

which is supported by the MultiMediaCard.

DSR

Driver stage register, control register for the programmable driver stage driver (PDS).

PDS

Programmable driver stage driver, is a tri-state output driver which has is

programmable to adapt the driver capabilities to the bus design.

Command

A command send from the MultiMediaCard host to one or more MultiMediaCard cards

Response

A response is always sent from the card to the host. It is always initiated by a

command (Remark: not all commands enforce responses).

Broadcast Com.

A command may send as broadcast or as an addressed command. A broadcast

command is sent to all cards connected to the MultiMediaCard bus simultaneous.

Addressed Com.

An addressed command is sent to exactly one selected MultiMediaCard. Normally an

addressed command forces a response of the card.

Point to point C.

Same as addressed command

DAT

The data (input)/output signal of the MultiMediaCard.

CLK

The clk input signal of the MultiMediaCard.

CMD

The command/response input/output of the MultiMediaCard.

SS1,2

Ground contacts/lines of the MultiMediaCard.

Supply voltage contact/line of the MultiMediaCard.

Memory core

Array of memory cells in the core of the MultiMediaCard.

MultiMediaCard

interface

MultiMediaCard command interpreter module.

MID

Manufacturer Identifier.

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