1)    Switches for PCA9501 and PCA9554 removed (switches were non-functional on I2C2002-1)
2)    Supply voltages adjusted to correct values (could be higher than normal on I2C2002-1)
3)    PCA9543 downstream pull up resistor values changed to 10 kOhms
4)    Pull up resistors in the main I2C bus (both side of the PCA9515) changed to 4.7 kOhms
5)    Jumpers on all the I/O's added for the PCA9501/50/51/54/61 in order to connect external hardware
6)    Polarity of PCA9501 WC pin inverted
       Polarity of PCA9515 Enable pin inverted
       Polarity of LM75A U10 A0 pin inverted
         Note: These polarities have been changed to follow a consistent  "default configuration"
         (all functions are enabled when the jumpers are "ON").
7)    Ground headers added (useful for experiments)
8)    Headers for the different I2C buses added (useful for experiments)
9)    Interrupt LEDs changed to red color
10)  Power supply LED  indicator added
11)  PCA9550: one white LED replaced by a blue LED
12)  All device are SO packages
13)  LEDs are wide-viewing SMD (thru-hole LEDs in 2002-1 boards)
 

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March 6, 2003