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Camera ISP Basic Programming Model
2. CSIPHY and link initialization sequence:
(a) Deassert the CSIPHY reset:
(i) Set
[30] RESET_CTRL to 0x1.
(b) The following registers can be set only after deasserting the CSIPHY reset, and before asserting
the ForceRxMode signal:
•
•
•
(c) Assert the ForceRxMode signal:
(i) Set
[15] FORCE_RX_MODE_IO1 to 0x1.
(d) Connect the pulldown on the link (DP/DN) by asserting the respective PIPD* signals (PIPD* = 0):
•
For CSIPHY1: Pull down on signals through padconf registers:
–
cam_d6:
•
CONTROL_PADCONF_CAM_D5[24] INPUTENABLE1 = 0x1
•
CONTROL_PADCONF_CAM_D5[20] PULLTYPESELECT1 = 0x0
•
CONTROL_PADCONF_CAM_D5[19] PULLUDENABLE1 = 0x1
–
cam_d7:
•
CONTROL_PADCONF_CAM_D7[8] INPUTENABLE0 = 0x1
•
CONTROL_PADCONF_CAM_D7[4] PULLTYPESELECT0 = 0x0
•
CONTROL_PADCONF_CAM_D7[3] PULLUDENABLE0 = 0x1
–
cam_d8:
•
CONTROL_PADCONF_CAM_D7[24] INPUTENABLE1 = 0x1
•
CONTROL_PADCONF_CAM_D7[20] PULLTYPESELECT1 = 0x0
•
CONTROL_PADCONF_CAM_D7[19] PULLUDENABLE1 = 0x1
–
cam_d9:
•
CONTROL_PADCONF_CAM_D9[8] INPUTENABLE0 = 0x1
•
CONTROL_PADCONF_CAM_D9[4] PULLTYPESELECT0 = 0x0
•
CONTROL_PADCONF_CAM_D9[3] PULLUDENABLE0 = 0x1
•
For CSIPHY2: Pull down on signals through padconf registers:
–
cam_d0:
•
CONTROL_PADCONF_CAM_FLD[24] INPUTENABLE1 = 0x1
•
CONTROL_PADCONF_CAM_FLD[20] PULLTYPESELECT1 = 0x0
•
CONTROL_PADCONF_CAM_FLD[19] PULLUDENABLE1 = 0x1
–
cam_d1:
•
CONTROL_PADCONF_CAM_D1[8] INPUTENABLE0 = 0x1
•
CONTROL_PADCONF_CAM_D1[4] PULLTYPESELECT0 = 0x0
•
CONTROL_PADCONF_CAM_D1[3] PULLUDENABLE0 = 0x1
–
csi2_dx0:
•
CONTROL_PADCONF_CSI2_DX0[8] INPUTENABLE0 = 0x1
•
CONTROL_PADCONF_CSI2_DX0[4] PULLTYPESELECT0 = 0x0
•
CONTROL_PADCONF_CSI2_DX0[3] PULLUDENABLE0 = 0x1
–
csi2_dy0:
•
CONTROL_PADCONF_CSI2_DX0[24] INPUTENABLE1 = 0x1
•
CONTROL_PADCONF_CSI2_DX0[20] PULLTYPESELECT1 = 0x0
•
CONTROL_PADCONF_CSI2_DX0[19] PULLUDENABLE1 = 0x1
–
csi2_dx1:
•
CONTROL_PADCONF_CSI2_DX1[8] INPUTENABLE0 = 0x1
•
CONTROL_PADCONF_CSI2_DX1[4] PULLTYPESELECT0 = 0x0
•
CONTROL_PADCONF_CSI2_DX1[3] PULLUDENABLE0 = 0x1
–
csi2_dy1:
1245
SWPU177N – December 2009 – Revised November 2010
Camera Image Signal Processor
Copyright © 2009–2010, Texas Instruments Incorporated
