IDT P9241-G-EVK, User Manual

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P9241-G-EVK Evaluation Kit User Manual
© 2019 Integrated Device Technology, Inc. 6 March 1, 2019
LED Pattern Selection
The P9241-G-EVK uses two LEDs (LED1 and LED2 (see Figure 1) to indicate the power transfer status, faults, and operating modes. The LEDs
are connected to the LED1 and LED2 pins of the P9241-GB (see note below Figure 2) as shown in the P9241-G-EVK schematics.
The LED patterns can be selected by setting the voltage on the GPIO_A3 pin (see Table 1) via the resistor divider R61 and R62 (for location,
refer to Figure 3 and Figure 4). On the Evaluation Board, the GPIO_A3 pin is pulled down to GND through R62. R61 is unpopulated; therefore,
option 1 is the default option.
Table 1. LED Pattern Selection
Option Voltage on GPIO_A3 Pin LED1/LED2 Pin
Status
Standby Transfer Complete Fault
1
0V ≤ V
GPIO_A3
< 0.1V;
0.7V < V
GPIO_A3
< 0.8V;
1.4V < V
GPIO_A3
< 1.5V;
2.1V < V
GPIO_A3
< 2.4V
LED2 Off On Off Off
LED1 Off Off Off Blink 4Hz
2
0.1V < V
GPIO_A3
< 0.2V;
0.8V < V
GPIO_A3
< 0.9V;
1.5 V< V
GPIO_A3
< 1.6V
LED2 On On Off Off
LED1 On Off Off Blink 4Hz
3
0.2V < V
GPIO_A3
< 0.3V;
0.9V < V
GPIO_A3
< 1.0V;
1.6V < V
GPIO_A3
< 1.7V
LED2 Off Blink 1Hz On Blink 4Hz
LED1 Off Off Off Off
4
0.3V < V
GPIO_A3
< 0.4V;
1.0V < V
GPIO_A3
< 1.1V;
1.7V < V
GPIO_A3
< 1.8V
LED2 Off On Off Blink 4Hz
LED1 Off Off Off Off
5
0.4V < V
GPIO_A3
< 0.5V;
1.1V < V
GPIO_A3
< 1.2V;
1.8V < V
GPIO_A3
< 1.9V
LED2 On Blink 1Hz On Off
LED1 On Off Off Blink 4Hz
6
0.5V < V
GPIO_A3
< 0.6V;
1.2V < V
GPIO_A3
< 1.3V;
1.9V < V
GPIO_A3
< 2.0V
LED2 Off Off On Off
LED1 Off On Off Blink 4Hz
7
0.6V < V
GPIO_A3
< 0.7V;
1.3V < V
GPIO_A3
< 1.4V;
2.0V < V
GPIO_A3
< 2.1V
LED2 Off Blink 1Hz On Off
LED1 Off Off Off Blink 4Hz