Epson S1D13706 - 3 S1 D13706 Host Bus Interface; Host Bus Interface Pin Mapping

Epson Research and Development
Page 11
Vancouver Design Center
Interfacing to the Intel StrongARM SA-1110 Microprocessor S1D13706
Issue Date: 02/06/26 X31B-G-019-02
3 S1D13706 Host Bus Interface
The S1D13706 directly supports multiple processors. The S1D13706 implements a 16-bit
Generic #2 Host Bus Interface which is most suitable for direct connection to the
SA-1110.
The Generic #2 Host Bus Interface is selected by the S1D13706 on the rising edge of
RESET#. After releasing reset the bus interface signals assume their selected configuration.
For details on S1D13706 configuration, see Section 4.2, “S1D13706 Hardware Configu-
ration” on page 14.
3.1 Host Bus Interface Pin Mapping
The following table shows the functions of each Host Bus Interface signal.
Table 3-1: Host Bus Interface Pin Mapping
S1D13706 Pin Name SA-1110
AB[16:1] A[16:1]
AB0 nCAS0
DB[15:0] D[15:0]
WE1# nCAS1
M/R# A17
CS# nCS4
CLKI SDCLK2
BS# V
DD
RD/WR# V
DD
RD# nOE
WE0# nWE
WAIT# RDY
RESET# system RESET