Port Descriptions - 5.3 English

MIPI CSI-2 Receiver Subsystem Product Guide (PG232)

Document ID
PG232
Release Date
2023-05-16
Version
5.3 English

The MIPI CSI-2 RX Subsystem I/O signals are described in Table: Port Descriptions .

Table 2-5: Port Descriptions

Signal Name

Direction

Description

lite_aclk

Input

AXI clock

lite_aresetn

Input

AXI reset. Active-Low. This signal should be synchronous to lite_aclk.

S00_AXI*

AXI4-Lite interface, defined in the Vivado Design Suite: AXI Reference Guide (UG1037) [Ref 7]

dphy_clk_200M

Input

Clock for D-PHY core. Must be 200 MHz.

video_aclk

Input

Subsystem clock

video_aresetn (1)

Input

Subsystem reset. Active-Low. This signal should be synchronous to video_aclk.

AXI4-Stream Video Interface when Video Format Bridge is Present

video_out_tvalid

Output

Data valid

video_out_tready

Input

Slave ready to accept the data

video_out_tuser[n-1:0]

Output

n is based on TUSER width selected in the Vivado IDE

95-80

CRC (3)

79-72

ECC

71-70

Reserved

69-64

Data Type

63-48

Word Count

47-32

Line Number

31-16

Frame Number

15-2

Reserved

1

Packet Error

0

Start of Frame (2)

video_out_tlast

Output

End of line

video_out_tdata[n-1:0]

Output

Data

n is based on Data type and number of pixels selected in the Vivado IDE (see video_out Port Width ).

video_out_tdest[9:0]

Output

9-4

Data Type

3-0

Virtual Channel Identifier (VC)

Note: The TDEST value stays constant throughout the line.

AXI4-Stream Interface when Embedded Non-image Interface is Selected

emb_nonimg_tdata[n-1:0]

Output

Data

n is based on Data type selected in the Vivado IDE (see Table: Embedded Non-Image AXI4-Stream Interface TDATA Widths ).

emb_nonimg_tdest[3:0]

Output

Specifies the Virtual Channel Identifier (VC) value of the embedded non-image packet

emb_nonimg_tkeep[n/8-1:0]

Output

Specifies valid bytes

emb_nonimg_tlast

Output

End of line

emb_nonimg_tready

Input

Slave ready to accept data

emb_nonimg_tuser[95:0]

Output

95-80

CRC (3)

79-72

ECC

71-70

Reserved

69-64

Data Type

63-48

Word Count

47-32

Line Number

31-16

Frame Number

15-2

Reserved

1

Packet Error

0

Start of frame (2)

emb_nonimg_tvalid

Output

Data valid

AXI4-Stream Interface when Video Format Bridge is Not Present

video_out_tdata[n-1:0]

Output

Data

n is based on TDATA width selected in the Vivado IDE.

video_out_tdest[n-1:0]

Output

n is based on TDEST width selected in the Vivado IDE:

9-4

Data type

3-0

Virtual Channel Identifier (VC)

video_out_tkeep[n/8-1:0]

Output

Specifies valid bytes

video_out_tlast

Output

End of line

video_out_tready

Input

Slave ready to accept data

video_out_tuser[n-1:0]

Output

n is based on TUSER width selected in the Vivado IDE

95-80

CRC (3)

79-72

ECC

71-70

Reserved

69-64

Data Type

63-48

Word Count

47-32

Line Number

31-16

Frame Number

15-2

Reserved

1

Packet Error

0

Start of frame (2)

video_out_tvalid

Output

Data valid

Other Signals

csirxss_csi_irq

Output

Interrupt (active-High) from CSI-2 RX Controller

AMD 7 series FPGA

mipi_dphy_if

Output

DPHY interface

rxbyteclkhs

Output

PPI high-speed receive byte clock

system_rst_out

Output

Reset indication due to PLL reset (active-High)

dlyctrl_rdy_out

Output

Ready signal output from IDEALYCTRL, stating delay values are adjusted as per vtc changes

dlyctrl_rdy_in

Input

Ready signal input to IDELAYCTRL. Refer “Include IDELAYCTRL in Core” in Configuration Tab for more details.

clk_300m

Input

300 MHz clock for IDELAYCTRL

UltraScale+ and Versal Adaptive SoC Shared Logic Outside the Subsystem

mipi_phy_if

Output

DPHY interface

rxbyteclkhs

Output

PPI high-speed receive byte clock

clkoutphy_out

Output

PHY serial clock

system_rst_out

Output

Reset indication due to PLL reset (active-High)

pll_lock_out

Output

PLL lock indication (active-High)

rxbyteclkhs_cnts_out

Output

Continuous PPI high-speed receive byte clock for line rates > 1500 Mb/s

UltraScale+ and Versal Adaptive SoC Shared Logic Inside the Subsystem

mipi_phy_if

Output

DPHY interface

bg<x>_pin<y>_nc

Input

Inferred bitslice ports. The core infers bitslice0 of a nibble for strobe propagation within the byte group; <x> indicates byte group (0,1,2,3); <y> indicates bitslice0 position (0 for the lower nibble, 6 for the upper nibble)

RTL Design: There is no need to drive any data on these ports.

IP Integrator: These ports must be brought to the top level of the design to properly apply the constraints.

Note: Pins are available only for AMD UltraScale+ families.

Note: BITSLICE defines a single I/O for UltraScale+, NIBBLESLICE defines a single I/O for Versal devices.

clkoutphy_in

Input

PHY serial clock

pll_lock_in

Input

PLL Lock indication

rxbyteclkhs

Output

PPI high-speed receive byte clock

rxbyteclkhs_cnts_in

Input

Continuous PPI high-speed receive byte clock for line rates > 1500 Mb/s

ext_mmcm_clk_in

Input

External mmcm clock when selected External mmcm for line rates >1500

ext_mmcm_lock_in

Input

External mmcm lock in when selected External MMCM for line rates > 1500

ext_mmcm_clk_out

Output

mmcm clock out when selected to use MMCM inside subsystem for line rates >1500

ext_mmcm_lock_out

Output

mmcm lock out when selected to use MMCM inside subsystem for line rates > 1500

CSI-2 Controller Register Interface Disabled

ctrl_core_en

Input

Enable the core to receive and process packets

active_lanes[1:0]

Input

Active lanes

ctrl_dis_in_prgs

Output

Indicates the CSI-2 RX Controller core disable is in progress

errsotsynchs_intr

Output

Interrupt output indicating SoT synchronization completely failed

errsoths_intr

Output

Interrupt output indicating SoT error detected

cl_stopstate_intr

Output

High when clock lane is currently in stop state

dl<n>_stopstate_intr

Output

High when the lane module is currently in stop state

crc_status_intr

Output

High when the computed CRC code is different from the received CRC code

ecc_status_intr[1:0]

Output

Bit 1- High when ECC syndrome is computed and two bits error is detected in the received packet header

Bit 0- High when ECC syndrome was computed and a single bit error in the packet header was detected and corrected

linebuffer_full

Output

High when line buffer is full

frame_rcvd_pulse_out

Output

High when the Frame End (FE) short packet is received for the current frame

Notes:

1. The active-High reset for the MIPI D-PHY core is generated internally by setting the external active-Low reset ( video_aresetn ) to 0.

2. Each frame start packet with Virtual Channel (VC) identifier will be mapped to the first image packet and the first embedded non-image with the corresponding VC.

3. As CRC appears at the end of the MIPI packet, ECC and CRC are reported ONLY during the last beat of the stream transfer when TLAST and TVALID are asserted. You need to ignore ECC/CRC reported during other beats of the transfer. See Interface Debug for more details.