SED1354 Datasheet, PDF (424/472 Pages) Epson Company – Color Graphics LCD/CRT Controller

Page 18
Epson Research and Development
Vancouver Design Center
4.3 SED1354 Hardware Configuration
The SED1354 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
SED1354 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
SED1354
Pin Name
MD0
MD1
MD2
MD3
MD4
MD5
value on this pin at rising edge of RESET# is used to configure: (1/0)
1
8-bit host bus interface
0
16-bit host bus interface
For host bus interface selection see Table 4-2, “Host Bus Interface Selection”
Little Endian
Wait# signal is active high
Big Endian
Wait# signal is active low
MD9
Reserved
= configuration for MPC821 interface.
Configure SUSPEND# pin as Hardware
Suspend Enable
MD3
0
0
0
0
1
Table 4-2: Host Bus Interface Selection
MD2
0
0
1
1
x
MD1
0
1
0
1
x
Host Bus Interface
SH-3 bus interface
MC68K bus 1 interface (e.g. MC68000)
MC68K bus 2 interface (e.g. MC68030)
Generic bus interface (e.g. MPC821, ISA bus interface)
Reserved
= configuration for MPC821 interface.
SED1354
X19A-G-010-04
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/03/10