Epson Research and Development
Page 13
Vancouver Design Center
Interfacing to the PC Card Bus
S1D13704
Issue Date: 01/02/12
X26A-G-009-03
4.2 S1D13704 Hardware Configuration
The S1D13704 uses CNF4 through CNF0 and BS# to allow selection of the bus mode and
other configuration data on the rising edge of RESET#. Refer to the S1D13704 Hardware
Functional Specification, document number X26A-A-001-xx for details.
The tables below show only those configuration settings important to the PC Card host bus
interface.
Table 4-1: Summary of Power-On/Reset Options
Signal
Low
High
CNF0
See “Host Bus Selection” table below
See “Host Bus Selection” table below
CNF1
CNF2
CNF3
Little Endian
Big Endian
CNF4
Active low LCDPWR signal
Active high LCDPWR signal
= configuration for PC Card host bus interface
Table 4-2: Host Bus Interface Selection
CNF2
CNF1
CNF0
BS#
Host Bus Interface
0
0
0
X
SH-4 bus interface
0
0
1
X
SH-3 bus interface
0
1
0
X
reserved
0
1
1
X
MC68K bus interface #1, 16-bit
1
0
0
X
reserved
1
0
1
X
MC68K bus interface #2, 16-bit
1
1
0
0
reserved
1
1
0
1
reserved
1
1
1
0
Generic #1, 16-bit
1
1
1
1
Generic #2, 16-bit
= configuration for PC Card host bus interface
*