sed1374 ETC-unknow, sed1374 Datasheet - Page 400

• Manufacturer Part Number: sed1374
• Description: Sed1374 Embedded Memory Color Lcd Controller
• Manufacturer: ETC-unknow

Page 10
3 TMPR3912/22U and SED1374/75 Interface
3.1 Hardware Connections
X00A-G-004-01
ENDIAN
CARD1WAIT*
CARD1CSH*
CARD1CSL*
TMPR3912/22U
DCLKOUT
D[31:24]
D[23:16]
A[12:0]
RD*
WE*
ALE
The SED1374/75 occupies the TMPR3912/22U’s PC Card slot #1. Therefore, this slot
cannot be used for other devices on the main board. The Generic # 2 bus mode of the
SED1374/75 is used to interface to this PC Card slot #1.
The SED1374/75 is interfaced to the TMPR3912/22U with minimal glue logic. Since the
address bus of the TMPR3912/22U is multiplexed, it is demultiplexed using an advanced
CMOS latch (74ACT373) to obtain the higher address bits needed for the SED1374/75.
The following diagram demonstrates the implementation of the interface.
Clock divider
Latch
Figure 3-1: SED1374 to TMPR3912/22U Interface
/ 2
3.3V
10K pull-up
Clock divider
/ 2
or...
System RESET
Oscillator
3.3V
3.3V
+3.3V
SDU1374/75-TMPR3912/22U CPU Module
EPSON Research and Development
BS#
RD/WR#
IO V
RD#
WE10#
WE1#
CLKI
BUSCLK
AB[15:13]
AB[12:0]
DB[7:0]
WAIT#
RESET#
CS#
DB[15:8]
SED1374
DD
, CORE V
Vancouver Design Center
Issue Date: 98/12/23
DD