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

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Epson Research and Development
Vancouver Design Center
S1D13706 Interfacing to the Motorola RedCap2 DSP With Integrated MCU
X31B-G-014-02 Issue Date: 01/02/23
3 S1D13706 Host Bus Interface
The S1D13706 implements a 16-bit native REDCAP2 host bus interface which is used to
interface to the REDCAP2 processor.
The REDCAP2 host bus interface is selected by the S1D13706 on the rising edge of
RESET#. After releasing reset, the bus interface signals assume their selected configu-
ration. For details on S1D13706 configuration, see Section 4.3, “S1D13706 Hardware
Configuration” on page 15.
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 Names REDCAP2
AB[16:0] A[16:0]
DB[15:0] D[15:0]
WE1# EB0
M/R# A17
CS#
REDCAP2 Internal Chip
Select
CLKI CKO
BS# Connected to HIO V
DD
RD/WR# R/W
RD# OE
WE0# EB1
WAIT# N/A
RESET# R
ST_OUT