A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 395 / 812
Register Name: CSI1_CFG_REG
Data clock type
0: active in falling edge
1: active in rising edge
4.2.6.3. CSI CAPTURE CONTROL REGISTER
Register Name: CSI1_CAP_REG
VCAP_ON
Video capture control: Capture the video image data stream.
0: Disable video capture
If video capture is in progress, the CSI stops capturing image
data at the end of the current frame, and all of the current frame
data is wrote to output FIFO.
1: Enable video capture
The CSI starts capturing image data at the start of the next
frame.
SCAP_ON
Still capture control: Capture a single still image frame.
0: Disable still capture.
1: Enable still capture
The CSI module starts capturing image data at the start of the
next frame. The CSI module captures only one frame of image
data. This bit is self clearing and always reads as a 0.
4.2.6.4. CSI HORIZONTAL SCALE REGISTER
Register Name: CSI0_SCALE_REG