Epson Research and Development

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Vancouver Design Center

 

 

 

4.2 S1D13504 Hardware Configuration

The S1D13504 latches MD15 through MD0 to allow selection of the bus mode and other configuration data on the rising edge of RESET#. Table 4-2 shows the settings used for the S1D13504 in these interfaces. MD1, MD2, and MD3 should be set to select either MC68000 Bus 1 mode or Generic bus mode as desired. The other settings are identical for either bus mode.

Table 4-1: Summary of Power-On/Reset Options

S1D13504

value on this pin at rising edge of RESET# is used to configure:(1/0)

Pin Name

 

 

1

0

 

 

 

MD0

8-bit host bus interface

16-bit host bus interface

MD1

 

 

 

 

 

MD2

See “Host Bus Selection” table below

See “Host Bus Selection” table below

 

 

 

MD3

 

 

 

 

 

MD4

Little Endian

Big Endian

MD5

Wait# signal is active high

Wait# signal is active low

MD6

See “Memory Configuration” table below

See “Memory Configuration” table below

 

MD7

 

 

 

 

 

 

Configure DACRD#, BLANK#, DACP0,

Configure DACRD#, BLANK#, DACP0,

MD8

DACWR#, DACRS0, DACRS1, HRTC,

DACWR#, DACRS0, DACRS1, HRTC, VRTC

 

VRTC as GPIO4-11

as DAC / CRT outputs

 

 

 

MD9

Configure SUSPEND# pin as GPO output

Configure SUSPEND# pin as Hardware

Suspend Enable

 

 

MD10

Active low (On) LCDPWR / GPO polarity

Active high (On) LCDPWR / GPO polarity

 

 

 

MD11

Reserved

 

 

 

 

MD12

Reserved

 

 

 

 

MD13

Reserved

 

 

 

 

MD14

Reserved

 

 

 

 

MD15

Reserved

 

 

 

 

 

= required settings for MC68328 support.

 

 

 

Table 4-2: S1D13504 Host Bus Selection

MD3

MD2

MD1

Option

Host Bus Interface

 

 

 

 

 

0

0

0

1

SH-3 bus interface

 

 

 

 

 

0

0

1

2

MC68K bus 1 interface (e.g. MC68000)

 

 

 

 

 

0

1

0

3

MC68K bus 2 interface (e.g. MC68030)

 

 

 

 

 

0

1

1

4

Generic bus interface (e.g. MC68328, ISA bus interface)

1

x

x

5

Reserved

 

 

 

 

 

= required settings for MC68328 support.

Interfacing to the Motorola MC68328 "Dragonball" Microprocessor

S1D13504

Issue Date: 01/02/02

X19A-G-013-02

Page 433
Image 433
Epson S1D13504 manual MD6, MD7