beautypg.com

Renesas SH7781 User Manual

Page 435

background image

11. Local Bus State Controller (LBSC)

Rev.1.00 Jan. 10, 2008 Page 405 of 1658

REJ09B0261-0100

Figures 11.6 to 11.8 show examples of connections to SRAM with 32-, 16- and 8-bit data width,
respectively.

••••

••••

••••

••••

••••

A16

A0
CS

OE
I/O7

I/O0
WE

••••

••••

••••

••••

A18

A2

CSn

RD

D31

D24

WE3

D23

D16

WE2

D15

D8

WE1

D7

D0

WE0

SH7785

128K

× 8 bits

SRAM

••••

A16

A0
CS

OE
I/O7

I/O0
WE

••••

••••

••••

••••

••••

••••

A16

A0
CS

OE
I/O7

I/O0
WE

••••

••••

••••

••••

A16

A0
CS

OE
I/O7

I/O0
WE

••••

••••

••••

••••

••••

••••

Figure 11.6 Example of 32-Bit Data Width SRAM Connection