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Epson Research and Development

 

Vancouver Design Center

 

 

4.3 S1D13504 Hardware Configuration

The S1D13504 uses MD15 through MD0 to allow selection of the bus mode and other configuration data on the rising edge of RESET#. For details on configuration, refer to the S1D13504 Hardware Functional Specification, document number X19A-A-002-xx.

The tables below show only those configuration settings important to the MPC821 interface.

 

 

.

 

 

Table 4-2: 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

For host bus interface selection see Table 4-2, “Host Bus Interface Selection”

 

 

 

 

MD3

 

 

 

 

 

 

 

MD4

Little Endian

 

Big Endian

MD5

Wait# signal is active high

 

Wait# signal is active low

 

 

 

 

MD9

Reserved

 

Configure SUSPEND# pin as Hardware

 

Suspend Enable

 

 

 

 

 

 

 

= configuration for MPC821 interface.

Table 4-2: Host Bus Interface Selection

MD3

MD2

MD1

Host Bus Interface

 

 

 

 

0

0

0

SH-3 bus interface

 

 

 

 

0

0

1

MC68K bus 1 interface (e.g. MC68000)

 

 

 

 

0

1

0

MC68K bus 2 interface (e.g. MC68030)

 

 

 

 

0

1

1

Generic bus interface (e.g. MPC821, ISA bus interface)

1

x

x

Reserved

 

 

 

 

= configuration for MPC821 interface.

S1D13504

Interfacing to the Motorola MPC821 Microprocessor

X19A-G-010-05

Issue Date: 01/02/02

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Epson manual S1D13504 Hardware Configuration