Pixel Encoding - 2.2 English

This section elaborates the pixel encoding and the s_axis_tdata or the vid_pxl port width generation followed by the MIPI CSI-2 TX controller. For more details, refer to AXI4-Stream Video IP and System Design Guide (UG934) [Ref 2] .

The width of the s_axis_tdata or the vid_pxl port is calculated as shown below:

Width of s_axis_tdata/vid_pix Port = Byte aligned of (C_CSI_MAX_BPC*3*Pixel Mode)

For example, C_CSI_MAX_BPC is 14 then data width for 1 Pixel mode will be 14*3*1 resulting in 42. Therefore, the width has to be byte aligned with the final Data Width, which in this case is 48 ([47:0]). For individual data types pixel encoding refer to Table: Pixel Encoding for Single Pixel per Beat with C_CSI_MAX_BPC =14 to Table: Pixel Encoding for Quad Pixel per Beat with C_CSI_MAX_BPC =20 correspondingly,

Table: Pixel Encoding for Single Pixel per Beat with C_CSI_MAX_BPC =14 lists the pixel encoding for single pixel per beat.

Table 2-5: Pixel Encoding for Single Pixel per Beat with C_CSI_MAX_BPC =14
Generic	[12DW-1: 11DW]	[11DW-1: 10DW]	[10DW-1: 9DW]	[9DW-1: 8DW]	[8DW-1: 7DW]	[7DW-1: 6DW]	[6DW-1: 5DW]	[5DW-1: 4DW]	[4DW-1: 3DW]	[3DW-1: 2DW]	[2DW-1: DW]	[DW-1:0]
Boundary	[167:154]	[153:140]	[139:126]	[125:112]	[111:98]	[97:84]	[83:70]	[69:56]	[55:42]	[41:28]	[27:14]	[13:0]
Data Type
RAW8, USD, Embedded non-image data												P0 [13:6]
RAW10												P0 [13:4]
RAW12												P0 [13:2]
RAW14												P0 [13: 0 ]
YUV422-8Bit											U0/V0 [27:20]	Y0/Y1[ 13:6]
RGB888										R0 [41:34]	B0 [27:20]	G0 [13:6]
RGB565										R0 [41:37]	B0 [27:23]	G0 [13:8]

Table 2-6: Pixel Encoding for Single Pixel per Beat with C_CSI_MAX_BPC =20
Generic	[12DW-1: 11DW]	[11DW-1: 10DW]	[10DW-1: 9DW]	[9DW-1: 8DW]	[8DW-1: 7DW]	[7DW-1: 6DW]	[6DW-1: 5DW]	[5DW-1: 4DW]	[4DW-1: 3DW]	[3DW-1: 2DW]	[2DW-1: DW]	[DW-1:0]
Boundary	[239:220]	[219:200]	[199:180]	[179:160]	[159:140]	[139:120]	[119:100]	[99:80]	[79:60]	[59:40]	[39:20]	[19:0]
Data Type
RAW8												P0 [19:12]
RAW10												P0 [19:10]
RAW12												P0 [19:8]
RAW14												P0 [19:6]
YUV422-8Bit											U0/V0 [39:32]	Y0/Y1 [19:12]
YUV 422-10 Bit											U0/V0 [39:30]	Y0/Y1 [19:10]
RGB888										R0 [59:52]	B0 [39:32]	G0 [19:12]
RGB565										R0 [59:55]	B0 [39:35]	G0 [19:14]
RAW16												P0 [19:4]
RAW20												P0 [19:0]

Table 2-7: Pixel Encoding for Dual Pixel per Beatwith C_CSI_MAX_BPC =14
Generic	[12DW-1: 11DW]	[11DW-1: 10DW]	[10DW-1: 9DW]	[9DW-1: 8DW]	[8DW-1: 7DW]	[7DW-1: 6DW]	[6DW-1: 5DW]	[5DW-1: 4DW]	[4DW-1: 3DW]	[3DW-1: 2DW]	[2DW-1: DW]	[DW-1:0]
Boundary	[167:154]	[153:140]	[139:126]	[125:112]	[111:98]	[97:84]	[83:70]	[69:56]	[55:42]	[41:28]	[27:14]	[13:0]
Data Type
RAW8, USD, Embedded non-image data											P1 [27:20]	P0 [13:6]
RAW10											P1 [27:18]	P0 [13:4]
RAW12											P1 [27:16]	P0 [13:2]
RAW14											P1 [27:14]	P0 [13:0]
YUV422-8Bit									V0 [55:48]	Y1 [41:34]	U0 [27:20]	Y0 [13:6]
RGB888							R1 [83:76]	B1 [69:62]	G1 [55:48]	R0 [41:34]	B0 [27:20]	G0 [13:6]
RGB565							R1 [83:79]	B1 [69:65]	G1 [55:50]	R0 [41:37]	B0 [27:23]	G0 [13:8]

Table: Pixel Encoding for Dual Pixel per Beatwith C_CSI_MAX_BPC =14 lists the pixel encoding for dual pixel per beat.

Table 2-8: Pixel Encoding for Dual Pixel per Beat with C_CSI_MAX_BPC=20
Generic	[12DW-1: 11DW]	[11DW-1: 10DW]	[10DW-1: 9DW]	[9DW-1: 8DW]	[8DW-1: 7DW]	[7DW-1: 6DW]	[6DW-1: 5DW]	[5DW-1: 4DW]	[4DW-1: 3DW]	[3DW-1: 2DW]	[2DW-1: DW]	[DW-1:0]
Boundary	[239:220]	[219:200]	[199:180]	[179:160]	[159:140]	[139:120]	[119:100]	[99:80]	[79:60]	[59:40]	[39:20]	[19:0]
Data Type
RAW8											P1 [39:32]	P0 [19:12]
RAW10											P1 [39:30]	P0 [19:10]
RAW12											P1 [39:28]	P0 [19:8]
RAW14											P1 [39:26]	P0 [19:6]
YUV422-8Bit									V0 [79:72]	Y1 [59:52]	U0 [39:32]	Y0 [19:12]
YUV 422-10 Bit									V0 [79:70]	Y1 [59:50]	U0 [39:30]	Y0 [19:10]
RGB888							R1 [119:112]	B1 [99:92]	G1 [79:72]	R0 [59:52]	B0 [39:32]	G0 [19:12]
RGB565							R1 [119:115]	B1 [99:95]	G1 [79:74]	R0 [59:55]	B0 [39:35]	G0 [19:14]
RAW16											P1 [39:24]	P0 [19:4]
RAW20											P1 [39:20]	P0 [19:0]

Table: Pixel encoding for Quad Pixel per Beat with C_CSI_MAX_BPC =14 lists the pixel encoding for quad pixel per beat.

Table 2-9: Pixel encoding for Quad Pixel per Beat with C_CSI_MAX_BPC =14
Generic	[12DW-1: 11DW]	[11DW-1: 10DW]	[10DW-1: 9DW]	[9DW-1: 8DW]	[8DW-1: 7DW]	[7DW-1: 6DW]	[6DW-1: 5DW]	[5DW-1: 4DW]	[4DW-1: 3DW]	[3DW-1: 2DW]	[2DW-1: DW]	[DW-1:0]
Boundary	[167:154]	[153:140]	[139:126]	[125:112]	[111:98]	[97:84]	[83:70]	[69:56]	[55:42]	[41:28]	[27:14]	[13:0]
Data Type
RAW8, USD, Embedded non-image data									P3 [55:48]	P2 [41:34]	P1 [27:20]	P0 [13:6]
RAW10									P3 [55:46]	P2 [41:32]	P1 [27:18]	P0 [13:4]
RAW12									P3 [55:44]	P2 [41:30]	P1 [27:16]	P0 [13:2]
RAW14									P3 [55:42]	P2 [41:28]	P1 [27:14]	P0 [13:0]
YUV422-8Bit					V2 [111:104]	Y3 [97:90]	U2 [83:76]	Y2 [69:62]	V0 [55:48]	Y1 [41:34]	U0 [27:20]	Y0 [13:6]
RGB888	R3 [167:160]	B3 [153:146]	G3 [139:132]	R2 [125:118]	B2 [111:104]	G2 [97:90]	R1 [83:76]	B1 [69:62]	G1 [55:48]	R0 [41:34]	B0 [27:20]	G0 [13:6]
RGB565	R3 [167:163]	B3 [153:149]	G3 [139:134]	R2 [125:121]	B2 [111:107]	G2 [97:92]	R1 [83:79]	B1 [69:65]	G1 [55:50]	R0 [41:37]	B0 [27:23]	G0 [13:8]

Table 2-10: Pixel Encoding for Quad Pixel per Beat with C_CSI_MAX_BPC =20
Generic	[12DW-1: 11DW]	[11DW-1: 10DW]	[10DW-1: 9DW]	[9DW-1: 8DW]	[8DW-1: 7DW]	[7DW-1: 6DW]	[6DW-1: 5DW]	[5DW-1: 4DW]	[4DW-1: 3DW]	[3DW-1: 2DW]	[2DW-1: DW]	[DW-1:0]
Boundary	[239:220]	[219:200]	[199:180]	[179:160]	[159:140]	[139:120]	[119:100]	[99:80]	[79:60]	[59:40]	[39:20]	[19:0]
Data Type
RAW8									P3 [79:72]	P2 [59:52]	P1 [39:32]	P0 [19:12]
RAW10									P3 [79:70]	P2 [59:50]	P1 [39:30]	P0 [19:10]
RAW12									P3 [79:68]	P2 [59:48]	P1 [39:28]	P0 [19:8]
RAW14									P3 [79:66]	P2 [59:46]	P1 [39:26]	P0 [19:6]
YUV422-8Bit					V2 [159:152]	Y3 [139:132]	U2 [119:110]	Y2 [99:92]	V0 [79:72]	Y1 [59:52]	U0 [39:32]	Y0 [19:12]
YUV 422-10 Bit					V2 [159:150]	Y3 [139:130]	U2 [119:110]	Y2 [99:90]	V0 [79:70]	Y1 [59:50]	U0 [39:30]	Y0 [19:10]
RGB888	R3 [239:232]	B3 [219:212]	G3 [199:192]	R2 [179:172]	B2 [159:152]	G2 [139:132]	R1 [119:112]	B1 [99:92]	G1 [79:72]	R0 [59:52]	B0 [39:32]	G0 [19:12]
RGB565	R3 [239:235]	B3 [219:215]	G3 [199:194]	R2 [179:175]	B2 [159:155]	G2 [139:134]	R1 [119:115]	B1 [99:95]	G1 [79:74]	R0 [59:55]	B0 [39:35]	G0 [19:14]
RAW16									P3 [79:64]	P2 [59:44]	P1 [39:24]	P0 [19:4]
RAW20									P3 [79:70]	P2 [59:50]	P1 [39:20]	P0 [19:0]