SH7080_09 Datasheet, PDF(1581/1622 Page) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

SH7080_09 Datasheet, PDF (1581/1622 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family

◁

Appendix

External Space (Burst ROM (Clock Synchronous))

32-bit Space

Pin Name

WE

Most

Significant Second

Byte

Byte

RH

H

Least

Significant Upper

Third Byte Byte

Word

H

H

H

Lower

Word

H

Wâ¯

â¯

â¯

â¯

â¯

â¯

ICIOWR

RH

H

H

H

H

H

Wâ¯

â¯

â¯

â¯

â¯

â¯

A29 to A0

Address Address Address Address Address Address

D31 to D24

Data

Hi-Z

Hi-Z

Hi-Z

Data

Hi-Z

D23 to D16

Hi-Z

Data

Hi-Z

Hi-Z

Data

Hi-Z

D15 to D8

Hi-Z

Hi-Z

Data

Hi-Z

Hi-Z

Data

D7 to D0

Hi-Z

Hi-Z

Hi-Z

Data

Hi-Z

Data

[Legend]

R:

W:

Enabled:

Read

Write

Chip select signals corresponding to accessed areas = Low.

The other chip select signals = High.

Longword

H

â¯

H

â¯

Address

Data

Data

Data

Data

Table C.1 Pin States of Bus Related Signals (10)

Pin Name

CS0 to CS8

CE1A, CE1B,

CE2A, CE2B

BS

RASU, RASL

CASU, CASL

DQMUU

DQMUL

DQMLU

DQMLL

Upper Byte

Enabled*1

H

L

Enabled*2

Enabled*2

H

H

L

H

External Space (SDRAM)

16-bit Space

Lower Byte

Word/Longword

Enabled*1

Enabled*1

H

H

L

Enabled*2

Enabled*2

H

H

H

L

L

Enabled*2

Enabled*2

H

H

L

L

Rev. 4.00 Dec. 15, 2009 Page 1521 of 1558

REJ09B0181-0400

▷