S1D13504 Hardware Configuration - Epson S1D13504 Technical Manual

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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.
S1D13504
Pin Name
MD0
MD1
MD2
MD3
MD4
MD5
MD9
MD3
0
0
0
0
1
S1D13504
X19A-G-010-06
Table 4-2: Summary of Power-On/Reset Options
value on this pin at rising edge of RESET# is used to configure: (1/0)
1
8-bit host bus interface
For host bus interface selection see Table 4-2, "Host Bus Interface Selection"
Little Endian
Wait# signal is active high
Reserved
= configuration for MPC821 interface.
Table 4-2: Host Bus Interface Selection
MD2 MD1
0 0
SH-3 bus interface
0 1
MC68K bus 1 interface (e.g. MC68000)
1 0
MC68K bus 2 interface (e.g. MC68030)
1 1
Generic bus interface (e.g. MPC821, ISA bus interface)
x x
Reserved
= configuration for MPC821 interface.
.
16-bit host bus interface
Big Endian
Wait# signal is active low
Configure SUSPEND# pin as Hardware
Suspend Enable
Host Bus Interface
Interfacing to the Motorola MPC821 Microprocessor
Epson Research and Development
Vancouver Design Center
0
Issue Date: 01/10/26