DC-WME-01T-JT Digi International, DC-WME-01T-JT Datasheet - Page 41

• Manufacturer Part Number: DC-WME-01T-JT
• Description: MODULE WI-ME CUSTOMIZABLE JTAG
• Manufacturer: Digi International
• Series: Digi Connect® Wi-MEr

Specifications of DC-WME-01T-JT

• Frequency: 2.4GHz
• Data Rate - Maximum: 11Mbps
• Modulation Or Protocol: 802.11 b
• Applications: General Purpose
• Power - Output: 16dBm
• Sensitivity: -82dBm
• Voltage - Supply: 3.14 V ~ 3.45 V
• Data Interface: PCB, Through Hole
• Memory Size: 4MB Flash, 8MB RAM
• Antenna Connector: RP-SMA
• Operating Temperature: -30°C ~ 75°C
• Package / Case: Module
• Wireless Frequency: 2.4 GHz
• Interface Type: SMA
• Modulation: CCK, DBPSK, DQPSK
• Security: 64/128 WEP, WPA, 802.11i, TKIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Transmitting: -
• Current - Receiving: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: NS7520
• Other names: 602-1002

Soft Reset
Net+OS provides an internal facility to enact a soft reset, but it is the responsibility of a
specific implementation to choose a reasonable trigger to invoke it. One choice is to use a
GPIO pin as a signal to trigger a soft reset. The Digi Connect ME has one GPIO pin named
"/INIT” (PORTC5) that is not normally assigned to any other task. It is an ideal candidate
for a soft reset. The signal is exposed via pin 20 on the 20-pin header, so it can be
controlled by an embedded host. When plugged into the development board, the /INIT
signal is pulled high, unless a jumper is placed across pins 2 and 3 of jumper block P12. In
this way, placing the jumper simulates pressing a soft reset button.
The naresetapp example application demonstrates a simple mechanism for monitoring a
GPIO pin and then initiating a soft reset when the pin achieves a particular value.
Delay
Threshold
Minimum Hold Time
Characteristic
Reset Characteristics
250 milliseconds (typical)
2.88 V
1 microsecond pulse
Specification
P r o g r a m m i n g C o n s i d e r a t i o n s
3 3