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J970 is used to implement a keypad, it is connected to TPS65950. The keypad interface controller provides an enhanced keypad decode capability and simultaneously reduces host processor software overhead. More information in [http://www.ti.com/product/tps65950 TPS65950] datasheets. TPS65950 send via I2C1 all the interrupt request. Their characteristics are: <br>
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| Pad
| KPD_CO
| KPD_CO
| Keypad controler C0 Column 0
| -
| -
| KPD_C1
| KPD_C1
| Keypad controler C1 Column 1
| -
| -
| KPD_C2
| KPD_C2
| Keypad controler C2 Column 2
| -
| -
| KPD_C3
| KPD_C3
| Keypad controler C3 Column 3
| -
| -
| KPD_RO
| KPD_RO
| Keypad controler R0 Row 0
| -
| -
| KPD_R1
| KPD_R1
| Keypad controler R1 Row 1
| -
| -
| KPD_R2
| KPD_R2
| Keypad controler R2 Row 2
| -
| -
| KPD_R3
| KPD_R3
| Keypad controler R3 Row 3
| -
| -