SH7721 datasheet(359/1524 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]

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Section 9

Bus State Controller (BSC)

Rev. 3.00 Jan. 18, 2008 Page 297 of 1458

REJ09B0033-0300

Bit

Bit Name

Initial

Value

R/W

Description

TYPE3

TYPE2

TYPE1

TYPE0

R/W

Memory Type

Specify the type of memory connected to a space.

0000: Normal space

0001: Burst ROM (clock asynchronous)

0010: Reserved (setting prohibited)

0011: Byte-selection SRAM

0100: SDRAM

0101: PCMCIA

0110: Reserved (setting prohibited)

0111: Burst ROM (clock synchronous)

1000: Reserved (setting prohibited)

1001: Reserved (setting prohibited)

1010: Reserved (setting prohibited)

1011: Reserved (setting prohibited)

1100: Reserved (setting prohibited)

1101: Reserved (setting prohibited)

1110: Reserved (setting prohibited)

1111: Reserved (setting prohibited)

Note: Memory type for area 0 immediately after reset is

normal space. The normal space, burst ROM (clock

asynchronous), or burst ROM (clock synchronous) can

be selected by these bits.

For details on memory type in each area, see tables 9.2 and

9.3.



Reserved

This bit is always read as 0. The write value should always

be 0.

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