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This device is controlled by I2C. It has multiple registers that can be written or read in order to set/get the value of an IO.
The IOs are quasi-bidirectionnal. Which means that the user must take care of not writting into an IO that another device is already writting.
|
IO
|
Diode
|
Signal
|
Description |
| P00 |
Diode 6 |
BLON |
|
| P01 |
Diode 7 |
Wifi_Pwr_n |
Write to power on or off the WIFI device |
| P02 |
Diode 8 |
BLT_PWR_n |
Write to power on or off the BLE device |
| P03 |
Diode 9 |
BLT_ATSel |
|
| P04 |
- |
Wifi_nReset |
Write |
| P05 |
- |
Wifi_PD_CH |
Write |
| P06 |
- |
BLT_State |
Read the state of the BLE device |
| P07 |
- |
BLT_En |
Write '1' to enable BLE device |
| P08 |
Diode 10 |
J0_SWR_n |
Read '1' if the switch of Joystick right is set |
| P09 |
Diode 11 |
J0_SWL_n |
Read '1' if the switch of Joystick left is set |
| P10 |
Diode 12 |
- |
|
| P11 |
Diode 13 |
- |
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| P12 |
- |
Cam_Expo |
|
| P13 |
- |
Cam_LedOut |
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| P14 |
- |
PAL_PWDN |
Write '1' to power ON the PAL camera |
| P15 |
- |
Cam_PWDN |
Write '0' to power ON the OV7670 camera (active low) |
Link to datasheet:
- http://www.nxp.com/documents/data_sheet/PCA9673.pdf
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