S1D13705 Epson Electronics America, Inc., S1D13705 Datasheet - Page 339

• Manufacturer Part Number: S1D13705
• Description: S1d13705 Embedded Memory Lcd Controller
• Manufacturer: Epson Electronics America, Inc.

Epson Research and Development
Vancouver Design Center
3.4 MC683EZ28 To S1D13705 Interface
3.4.1 Hardware Description
Interfacing to the Motorola ‘Dragonball’ Family of Microprocessors
Issue Date: 01/02/13
Figure 3-1: Typical Implementation of MC68EZ328 to S1D13705 Interface - Generic #1
Note:
When connecting the S1D13705 RESET# pin, the system designer should be aware of all
conditions that may reset the S1D13705 (e.g. CPU reset can be asserted during wake-up
from power-down modes, or during debug states).
The interface between the MC68328 and the S1D13705 can be implemented using the
Generic #1 host bus interface of the S1D13705.
The DTACK signal must be made available for the S1D13705, since it inserts a variable
number of wait states depending upon CPU/LCD synchronization and the LCD panel
display mode. WAIT# must be inverted (using an inverter enabled by CS#) to make it an
active high signal and thus compatible with the MC68EZ328 architecture. A single resistor
is used to pull up WAIT# (DTACK) signal when terminating the bus cycle.
The following diagram shows a typical implementation of the MC68EZ328 to S1D13705
using the Generic #1 host bus interface. For further information on the Generic #1 host bus
interface and AC Timing, refer to the S1D13705 Hardware Functional Specification,
document number X27A-A-001-xx.
MC68EZ328
DTACK
UWE
CLK0
D[15:0]
A[16:0]
LWE
CSB0
OE
Vcc
1K
System RESET
WE0#
AB[16:0]
DB[15:0]
WAIT#
RD/WR#
RD#
BUSCLK
WE1#
RESET#
CS#
BS#
S1D13705
X27A-G-007-04
S1D13705
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