Stream At Dual Oldi Output; Swap Port Lane Mappings And Invert Signal; Status And Debug Registers; Status And Error Bits - Analog Devices MAX96752 User Manual

Stream at Dual oLDI Output

Perform the following writes in the oLDI deserializer:
OLDI_FORMAT = Select the mapping format (oLDI or VESA) for the LVDS port
OLDI_4TH_LANE = Select 24- or 18-bit output (i.e., 4- or 3-lane output port)
OLDI_SPL_MODE = 3
OLDI_SPL_EN = 1
OLDI_SWAP_AB = Swap routing of even or odd pixels to ports A and B
OLDI_SPL_POL = 0

Swap Port Lane Mappings and Invert Signal

Swap port A lanes 1 and 2, and invert lane 2 polarity. Perform the following writes in the oLDI deserializer:
LANE_SEL_A1 = 2 (lane 1 pins output internal lane 2)
LANE_SEL_A2 = 1 (lane 2 pins output internal lane 1)
LANE_INV_A2 = 1 (invert polarity of lane 2 pins)

Status and Debug Registers

Status and Error Bits

The following register bits provide status and error information related to LVDS output.
VID_LOCK – (register VIDEO_RX8) – Indicates that a valid video stream is received for the selected channel ID, the
video pipeline is locked, and that the video stream is properly recovered by the LVDS to drive the display.
VID_PKT_DET – (register VIDEO_RX8) – Indicates that a stream of video packet for the selected stream ID is
detected by the deserializer.
DUAL_OLDI_AUTO_RST_ALIGNED – (register VRX46) – This bitfield reports if the oLDI output has reset itself after
detecting a non-alignment on the oLDI outputs. Only applicable if DUAL_OLDI_AUTO_RST_ALIGN = 1.
OUT_STUCK_ERR_FLAG – (register INTR3) – Flag is asserted when the oLDI output is stuck either low or high.
Enable with the OUT_STUCK_ERR_OEN bit. The flag is cleared when read if the output stuck event has been
resolved.
OUT_OPEN_ERR_FLAG – (register INTR3) – Flag is asserted when the oLDI output is open. Enable with the
OUT_OPEN_ERR_OEN bit. The flag is cleared when read if the output open even has been resolved.
Refer to the Error Flags section for additional information.
The following video receiver status registers and interrupts may also be used:
• Line CRC interrupt (LCRC_ERR_FLAG).
• Video block length error interrupt (VID_BLK_LEN_ERR).
• Video sequence number error (VID_SEQ_ERR).
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