Datasheet

37.2 Embedded Characteristics
• ITU-R BT. 601/656 8-bit Mode External Interface Support
•
Supports up to 12-bit Grayscale CMOS Sensors
• Support for ITU-R BT.656-4 SAV and EAV Synchronization
• Vertical and Horizontal Resolutions up to 2048 × 2048
• Preview Path up to 640 × 480 in RGB Mode
• Codec Path up to 2048 × 2048
• 16-byte FIFO on Codec Path
• 16-byte FIFO on Preview Path
• Support for Packed Data Formatting for YCbCr 4:2:2 Formats
• Preview Scaler to Generate Smaller Size image
• Programmable Frame Capture Rate
• VGA, QVGA, CIF, QCIF Formats Supported for LCD Preview
• Custom Formats with Horizontal and Vertical Preview Size as Multiples of 16 Also Supported for LCD Preview
37.3 Block Diagram
Figure 37-2. ISI Block Diagram
Timing Signals
Interface
CCIR-656
Embedded Timing
Decoder(SAV/EAV)
Pixel Sampling
Module
Clipping + Color
Conversion
YCC to RGB
2-D Image
Scaler
Pixel
Formatter
Rx Direct
Display
FIFO
Core
V
ideo
Arbiter
Camera
AHB
Master
Interface
APB
Interface
Camera
Interrupt
Controller
Configuration
Registers
Clipping + Color
Conversion
RGB to
YCC
Rx Direct
Capture
FIFO
Scatter
Mode
Support
Packed
Formatter
Frame Rate
YCbCr 4:2:2
8:8:8
5:6:5
RGB
CMOS Sensor
Pixel input
up to 12 bits
Hsync/Line enable
Vsync/Frame enable
CMOS Sensor
Pixel Clock
input
Pixel
Clock Domain
AHB
Clock Domain
APB
Clock Domain
From
Rx buf
fers
Camera
Interrupt Request Line
codec_on
AHB bus APB bus
Preview path
Codec path
37.4 Product Dependencies
37.4.1 I/O Lines
The pins used for interfacing the compliant external devices can be multiplexed with PIO lines. The programmer must
first program the PIO controllers to assign the ISI pins to their peripheral functions.
37.4.2 Power Management
The ISI can be clocked through the Power Management Controller (PMC), thus the programmer must first configure
the PMC to enable the ISI clock.
37.4.3 Interrupt Sources
The ISI interface has an interrupt line connected to the interrupt controller. Handling the ISI interrupt requires
programming the interrupt controller before configuring the ISI.
SAM E70/S70/V70/V71 Family
Image Sensor Interface (ISI)
©
2019 Microchip Technology Inc.
Datasheet
DS60001527D-page 529