CC-W9M-NA37-XE Digi International, CC-W9M-NA37-XE Datasheet - Page 22

• Manufacturer Part Number: CC-W9M-NA37-XE
• Description: MOD WI-9M 64MB SDRAM 128MB FLASH
• Manufacturer: Digi International
• Series: -r

Specifications of CC-W9M-NA37-XE

• Module/board Type: Core Module
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Networking

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C o n f i g u r a t i o n p i n s - C P U m o d u l e
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The write protect pin of the Flash device is routed to the hardware configuration
pin of the system connector FWP#. The device can be write protected at the base
board by connecting this pin to GND. At the module, a pull-up resistor is equipped.
There are eight configuration pins provided on the system connector. Four of them
are provided as hardware configuration pins, and the other four can be used as
software configuration pins. A 10k pull up resistor is provided on each signal line of
the configuration pins.
The following pins on the connector are defined as hardware configuration pins:
The following port pins are defined as software configuration pins:
The signal DEBUGEN# (CONF0) from the base board to the module is necessary to
allow switching a connection on and off between the system reset and the JTAG
reset.
Signal
DEBUGEN#
FWP#
CONF2
CONF3
Signal
CONF4
CONF5
CONF6
CONF7
Signal
DEBUGEN#
DEBUGEN#
SFR I/F: Supports Little Endian Mode, Byte/half word/word access to Data and
ECC Data register, and Word access to other registers.
Steppingstone I/F: Supports Little/Big Endian, Byte/half word/word access.
The Steppingstone 4-KB internal SRAM buffer can be used for another purpose
after NAND flash booting.
State
High
Low
Port Pin
GPF2
GPF3
GPF4
GPF5
Description
Switch is on, TRST# and PWRGOOD are connected (default)
Switch is off, TRST# and PWRGOOD are disconnected
Description
Debug enable
Write protect of internal flash
Hardware configuration 2 (not yet used)
Hardware configuration 3 (not yet used)
Description
Software configuration 0
Software configuration 1
Software configuration 2
Software configuration 3
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