S1D13705 Epson Electronics America, Inc., S1D13705 Datasheet - Page 306

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

Page 12
4 Direct Connection to the Toshiba TMPR3912
4.1 General Description
S1D13705
X27A-G-004-02
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).
ENDIAN
CARD1WAIT*
CARDIORD*
CARDIOWR*
CARD1CSH*
CARD1CSL*
TMPR3912
DCLKOUT
D[31:24]
D[23:16]
A[12:0]
ALE
Note
In this example implementation, the S1D13705 occupies the TMPR3912 PC Card slot #1.
The S1D13705 is easily interfaced to the TMPR3912 with minimal additional logic. The
address bus of the TMPR3912 PC Card interface is multiplexed and must be demultiplexed
using an advanced CMOS latch (e.g., 74AHC373). The direct connection approach makes
use of the S1D13705 in its “Generic Interface #2” configuration.
The following diagram demonstrates a typical implementation of the interface.
See Section 3.1 on page 9 and Section 3.3 on page 11 for Generic #2 pin descriptions.
Figure 4-1: S1D13705 to TMPR3912 Direct Connection
Latch
V
DD
Clock divider
pull-up
...or...
Interfacing to the Toshiba MIPS TMPR3912 Microprocessor
Oscillator
System RESET
+3.3V
+3.3V
+3.3V
See text
Epson Research and Development
BS#
RD/WR#
IO V
RD#
WE0#
WE1#
CLKI
BCLK
AB[16:13]
AB[12:0]
DB[7:0]
WAIT#
RESET#
CS#
DB[15:8]
S1D13705
DD
, CORE V
Vancouver Design Center
Issue Date: 01/02/13
DD