Page 10

EPSON Research and Development

Vancouver Design Center

3 TMPR3912/22U and S1D13704/5 Interface

3.1 Hardware Connections

The S1D13704/5 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 S1D13704/5 is used to interface to this PC Card slot #1.

The S1D13704/5 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 S1D13704/5.

The following diagram demonstrates the implementation of the interface.

 

 

 

 

 

S1D13704

TMPR3912/22U

 

 

 

+3.3V

IO VDD, CORE VDD

 

 

 

 

RD*

 

 

 

 

RD#

WE*

 

 

 

 

WE10#

CARD1CSL*

 

 

 

 

WE1#

CARD1CSH*

 

 

 

 

 

 

 

 

3.3V

BS#

 

 

 

 

 

 

 

 

 

3.3V

RD/WR#

 

 

 

 

 

ENDIAN

 

 

 

System RESET

RESET#

 

Latch

 

 

 

CS#

ALE

 

 

 

 

 

 

 

 

 

A[12:0]

 

 

 

 

AB[15:13]

 

 

 

 

 

AB[12:0]

D[31:24]

 

 

 

 

DB[7:0]

D[23:16]

 

 

 

 

DB[15:8]

 

3.3V

10K pull-up

 

 

 

 

 

 

 

 

CARD1WAIT*

 

 

 

 

WAIT#

DCLKOUT

 

Clock divider

or...

Oscillator

CLKI

 

 

/ 2

 

 

 

 

 

 

Clock divider

 

 

 

BUSCLK

 

/ 2

 

 

 

 

 

Figure 3-1: S1D13704 to TMPR3912/22U Interface

 

 

S5U13704/5 - TMPR3912/22U CPU Module

X00A-G-004-02

Issue Date: 01/03/07

Page 524
Image 524
Epson S1D13705 technical manual TMPR3912/22U and S1D13704/5 Interface, Hardware Connections