SH7721 datasheet(1100/1524 Pages) RENESAS

Part #	SH7721

Description	Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

PDF	1524 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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1100 / 1524 page

Section 31

MultiMediaCard Interface (MMCIF)

Rev. 3.00 Jan. 18, 2008 Page 1038 of 1458

REJ09B0033-0300

• CMDR1 to CMDR4

Bit

Bit Name

Initial

Value

R/W

Description

7 to 0

CMDR1 to

CMDR4

All 0

R/W

Command arguments

See specifications for the MMC.

• CMDR5

Bit

Bit Name

Initial

Value

R/W

Description

7 to 1

CRC

All 0



This bit is unnecessary to be set, and is always read as 0.

End



This bit is unnecessary to be set, and is always read as 0.

31.3.7

Response Registers 0 to 16 and D (RSPR0 to RSPR16 and RSPRD)

RSPR0 to RSPR16 are seventeen 8-bit command response registers. RSPRD is a 5-bit data

The number of command response bytes differs according to the command. The number of

command response bytes can be specified by the response type register (RSPTYR) in the MMCIF.

The command response is shifted-in from the bit 0 in RSPR16, and shifted to the number of

command response bytes

× 8 bits. Table 31.4 summarizes the correspondence between the number

of command response bytes and valid RSPR.

SH7721 Datasheet(PDF) 1100 Page - Renesas Technology Corp

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