Toshiba Tmpr3905/12 To S1D13706 Interface; Hardware Description - Epson S1D13706 Technical Manual

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4 Toshiba TMPR3905/12 to S1D13706 Interface

4.1 Hardware Description

TMPR3905/12
CARDIORD*
CARDIOWR*
CARD1CSL*
CARD1CSH*
ENDIAN
ALE
A[12:0]
D[31:24]
D[23:16]
CARD1WAIT*
DCLKOUT
Note:
When connecting the S1D13706 RESET# pin, the system designer should be aware of all
conditions that may reset the S1D13706 (e.g. CPU reset can be asserted during wake-up
from power-down modes, or during debug states).
S1D13706
X31B-G-002-02
In this implementation, the S1D13706 occupies the TMPR3905/12 PC Card slot #1 IO
address space. IO address space closely matches the timing parameters for the S1D13706
Generic #2 Host Bus Interface.
The address bus of the TMPR3905/12 PC Card interface is multiplexed and must be demul-
tiplexed using an advanced CMOS latch (e.g., 74AHC373).
BS# (bus start) and RD/WR# are not used in this implementation and should be tied high
(connected to HIO V
).
DD
A pull-up resistor is attached to WAIT# to speed up its rise time when terminating a cycle.
The following diagram demonstrates a typical implementation of the TMPR3905/12 to
S1D13706 interface.
A17
Latch
HIOVDD
pull-up
Clock divider
Figure 4-1: S1D13706 to TMPR3905/12 Direct Connection
+3.3V
HIO V
DD
System RESET
See text
...or...
Oscillator
Interfacing to the Toshiba MIPS TMPR3905/3912 Microprocessors
Epson Research and Development
Vancouver Design Center
S1D13706
HIO V
, CORE V
DD
DD
RD#
WE0#
M/R#
WE1#
BS#
RD/WR#
RESET#
CS#
AB[16:13]
AB[12:0]
DB[7:0]
DB[15:8]
WAIT#
CLKI2
CLKI
Issue Date: 01/02/23

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