Integration Guide

2:Description and Specifications
MatchPort b/g Pro Integration Guide 18
IMAGE_OVERSIZE 21
BAD_IMAGE_CHECKSUM 22
BAD_IMAGE_DESTINATION 23
INTERNAL_CODING_PROBLEM 24
Pin Connection Options
The circuit below is an example on how to correctly connect a switch (or permanent
jumper) and an LED to the BOOTP_EN# pin. The customer has the option of
implementing either the switch/resistor or the driver/LED or both or none.
The switch can be replaced by a jumper or hardwire. Having the hardwire in place means
that if the firmware image in FLASH becomes corrupt, the MatchPort b/g Pro will
automatically send out BOOTP requests over the network. This could be a security risk.
The switch or jumper allows BOOTP requests to be sent only after manual intervention.
If no switch/jumper/hardwire is installed, network recovery is only possible by issuing
a!NL command over the serial port.
Figure 2-10. BOOTP_EN# APPLICATION CIRCUIT
Electrical Specifications
Caution: Stressing the device above the rating listed in this table may cause
permanent damage to the MatchPort b/g Pro. Exposure to Absolute Maximum
Rating conditions for extended periods may affect the MatchPort b/g Pro's
reliability.
Table 2-3. Absolute Maximum Ratings
Parameter
Symbol
Min
Max
Units
Supply Voltage V
CC
0 3.6 Vdc
CP Voltage V
CP
-0.3 V
CC
+0.05 Vdc
Ethernet ETX+, ETX-, ERX+, ERX-
Voltage
V
ETH
0 V
CC
+0.3 Vdc
Operating Temperature -40 70
o
C
Storage Temperature -40 85
o
C