PrSOC
Misc parallel port with i2c interface PCA9673
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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 -  
P12 - Cam_Expo  
P13 - Cam_LedOut  
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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