LG -P970 Service Manual page 74

3.12.2.4 Camera ISP
The camera ISP is a key component for imaging and video applications such as video preview, video record , and still
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image capture with or without digital zooming.
Device
interconnect
interconnect
subsystem
subsystem
Legend:
(1) The mode for each PHY can be selected from CSI2, CSI1/CCP2B, and GPI at
SCM.CONTROL_CAMERA_PHY_CTRL register. It can also control the connection between one of the
PHY's and CSI1/CCP2B receiver via multiplexing.
(2) There is no top-level muxmode (padconf SCM register) control bit for the different camera modes supported
by the interfaces. If one or another of the interfaces is enabled, then the camera input signals will be
automatically routed to the corresponding ISP receiver depending on the PHY operating mode settings
(SCM.CONTROL_CAMERA_PHY_CTRL register)
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Figure 6-1. Camera iSP overview Diagram
Camera
L4
L3
MPU
INTC CAM_IRQ0
IVA2.2
INTC CAM_IRQ1
CAM_MCLK
CAM_ICLK
CAM_FCLK
PRCM
CSI2_96M__FCLK
STANDBY
hardware
handshake
CPI input when PHY's configured in GPI mode(cam_d signals)
Serial-to-Parallel converted data stream
ISP
csi2_dx0 / ccpv2_dx0 / cam_d[6]
csi2_dy0 / ccpv2_dy0 / cam_d[7]
csi2_dx1 / ccpv2_dx1 / cam_d[8]
csi2_dy1 / ccpv2_dy1 / cam_d[9]
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3. TECHNICAL BRIEF
Camera ISP Overview
cam_hs
cam_vs
cam_fld
cam_wen
cam_xclka
cam_xclkb
cam_pclk
(2)
cam_d[11:10]
(2)
cam_d[5:2]
csi2_dx0 / ccpv2_dx0
(1)(2)
csi2_dy0 / ccpv2_dy0
(1)(2)
csi2_dx1 / ccpv2_dx1
(1)(2)
csi2_dy1 / ccpv2_dy1
(1)(2)
csi2_dx2 / cam_d[1]
(1)(2)
csi2_dy2 / cam_d[0]
(1)(2)
(1)(2)
(1)(2)
(1)(2)
(1)(2)
cam_strobe
cam_global_reset
cam_shutter
camisp-001
Only for training and service purposes