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3 s1d13705 configuration and pin mapping – Epson S1D13705 User Manual

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Page 14

Epson Research and Development

Vancouver Design Center

S1D13705

Interfacing to the Philips MIPS PR31500/PR31700 Processor

X27A-G-012-02

Issue Date: 01/02/13

4.3 S1D13705 Configuration and Pin Mapping

The S1D13705 is configured at power up by latching the state of the CNF[3:0] pins. Pin
BS# also plays a role in host bus interface configuration. For details on configuration, refer
to the S1D13705 Hardware Functional Specification, document number X27A-A-001-xx.

The table below shows those configuration settings relevant to the direct connection
approach.

Table 4-1: S1D13705 Configuration for Direct Connection

S1D13705

Configuration

Pin

Value hard wired on this pin is used to configure:

1 (IO V

DD

)

0 (V

SS

)

BS#

Generic #2

Generic #1

CNF3

Big Endian

Little Endian

CNF[2:0]

111: Generic #1 or #2

= configuration for Philips PR31500/PR31700 host bus interface