CC-W9M-NA37-XE Digi International, CC-W9M-NA37-XE Datasheet - Page 75

• 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

Serial port B,
MEI interface,
X16
Serial port C,
TTL interface,
X19
75
C h a p t e r 2
ConnectCore 9M 2443 & Wi-9M 2443 Hardware Reference
The serial (UART) port B connector X16 is a DSUB9 male connector. This
asynchronous serial port is DTE and requires a null modem cable to connect to a
computer serial port.
The serial port B MEI (multiple electrical interface) interface corresponds to
S3C2443 UART port B. The line drivers are configured using switch S6.
Note that all port B pins are allocated as shown:
By default serial B signals are configured to their respective GPIO signals. It is the
responsibility of the driver to configure them properly.
Pin
1
2
3
4
5
6
7
8
9
Pin
1
2
3
4
5
6
7
8
9
10
Function
NC
NC
RXD2
RTS2#/TXD3
TXD2
CTS2#/RXD3
NC
NC
GND
+3.3V
RS232
function
RXD
TXD
GND
RTS#
CTS#
Defaults to
GPH5
GPH6
GPH4
GPH7
RS232
default
GPH3
GPH2
-
GPH11
GPH10
RS485
function
CTS-
RX+
TX+
RTS-
GND
RX-
RTS+
CTS+
TX-
RS485
default
n/a
GPH3
GPH2
n/a
-
n/a
GPIO11
GPH10
n/a