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Epson Research and Development
Vancouver Design Center
S1D13706 Interfacing to the Motorola MC68030 Microprocessor
X31B-G-013-02 Issue Date: 01/02/23
3 S1D13706 Host Bus Interface
The S1D13706 directly supports multiple processors. The S1D13706 implements a
MC68K #2 Host Bus Interface which directly supports the Motorola MC68030 micropro-
cessor.
The MC68K #2 Host Bus Interface is selected by the S1D13706 on the rising edge of
RESET#. After RESET# is released, the bus interface signals assume their selected config-
uration. For details on the S1D13706 configuration, see Section 4.2, “S1D13706 Hardware
Configuration” on page 13.
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
Motorola MC68030
AB[16:0] A[16:0]
DB[15:0] D[31:16]
WE1# DS
CS# External Decode
M/R# External Decode
CLKI CLK
BS# AS
RD/WR# R/W
RD# External Decode of SIZ1 and SIZ0
WE0# SIZ0
WAIT# DSACK1
RESET# System RESET
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