3.3.2 Image Sensor (ISC) Interface

This section describes the signals and connectors related to the ISC interface.

The Image Sensor Controller (ISC) system manages incoming data from a parallel or serial CSI-2 based CMOS/CCD sensor. The system supports a single active interface, as well as the ITU-R BT 656/1120 422 protocol with an 8-bit or 10-bit data width and raw Bayer format. The internal image processor includes adjustable white balance, color filter array interpolation, color correction, gamma correction, 12-bit to 10-bit compression, programmable color space conversion, as well as horizontal and vertical chrominance subsampling module.

Figure 3-31. ISC Interface
Figure 3-32. ISC Connector J27 Location

The table below describes the pin assignment of ISC connector J27.

Table 3-16. ISC Connector J27 Pin Assignment
SAMA5D27 Signal Pin No Signal SAMA5D27
Function PIO PIO Function
3.3V power – VDD_3V3 1 2 GND – Ground
3.3V power – VDD_3V3 3 4 GND – Ground
Reset PD6 ISC_RST 5 6 ISC_PWD PD7 Power down
TWI clock PD5 TWCK_ISC 7 8 TWD_ISC PD4 TWI data
Ground – GND 9 10 ISC_MCK PC24 Master clock
Ground – GND 11 12 ISC_VSYNC PC22 Vertical sync
Ground – GND 13 14 ISC_HSYNC PC23 Horizontal sync
Ground – GND 15 16 ISC_PCK PC21 Clock
Ground – GND 17 18 ISC_D0 PC9 Data0
Data1 PC10 ISC_D1 19 20 ISC_D2 PC11 Data2
Data3 PC12 ISC_D3 21 22 ISC_D4 PC13 Data4
Data5 PC14 ISC_D5 23 24 ISC_D6 PC15 Data6
Data7 PC16 ISC_D7 25 26 ISC_D8 PC17 Data8
Data9 PC18 ISC_D9 27 28 ISC_D10 PC19 Data10
Data11 PC20 ISC_D11 29 30 GND – Ground
Note: ISC and LCD share the same TWI interface.