camisp-212
a0 a1 a2 a3 a4 a5 a6 a7 b0 b1 b2 b3 b4 b5 b6 b7 c0 c1 c2 c3 c4 c5 c6 c7 d0 d1 d2 d3 d4 d5 d6 d7
e0 e1 e2 e3 e4 e5 e6 e7 f0 f1 f2 f3 f4 f5 f6 f7 g0 g1 g2 g3 g4 g5 g6 g7 h0 h1 h2 h3 h4 h5 h6 h7
U1
Y1
Y2
U3
Y3
Y4
U5
Y5
U3
Y1
Y1
U1
Y5
U5
Y4
Y3
t0
t31
t32
t63
Time
31
31
0
0
YUV420 8-bit legacy
Transmitter (odd line)
Receiver (odd line)
FIFO data
memory
organization
Transmitter (even line)
Receiver (even line)
V3
Y2
Y1
V1
Y5
V5
Y4
Y3
31
31
0
0
FIFO data
memory
organization
a0 a1 a2 a3 a4 a5 a6 a7 b0 b1 b2 b3 b4 b5 b6 b7 c0 c1 c2 c3 c4 c5 c6 c7 d0 d1 d2 d3 d4 d5 d6 d7
e0 e1 e2 e3 e4 e5 e6 e7 f0 f1 f2 f3 f4 f5 f6 f7 g0 g1 g2 g3 g4 g5 g6 g7 h0 h1 h2 h3 h4 h5 h6 h7
V1
Y1
Y2
V3
Y3
Y4
V5
Y5
t0
t31
t32
t63
Time
a0
a1
a2
a3
a4
a5
a6
a7
b0
b1
b2
b3
b4
b5
b6
b7
c0
c1
c2
c3
c4
c5
c6
c7
d0
d1
d2
d3
d4
d5
d6
d7
e0
e1
e2
e3
e4
e5
e6
e7
f0
f1
f2
f3
f4
f5
f6
f7
g0
g1
g2
g3
g4
g5
g6
g7
h0
h1
h2
h3
h4
h5
h6
h7
a0
a1
a2
a3
a4
a5
a6
a7
b0
b1
b2
b3
b4
b5
b6
b7
c0
c1
c2
c3
c4
c5
c6
c7
d0
d1
d2
d3
d4
d5
d6
d7
e0
e1
e2
e3
e4
e5
e6
e7
f0
f1
f2
f3
f4
f5
f6
f7
g0
g1
g2
g3
g4
g5
g6
g7
h0
h1
h2
h3
h4
h5
h6
h7
Public Version
www.ti.com
Camera ISP Environment
Figure 6-31. Camera ISP CSI2 YUV420 8-Bit Legacy
6.2.4.5.3.1.4 Camera ISP CSI2 YUV420 8-Bit + CSPS
YUV420 8-bit CSPS data can be stored to memory in little-endian format. The line length sent through the
CSI2 physical protocol is a multiple of 16 bits for odd lines and 32 bits for even lines.
For correct pixel reconstruction, the line length must be a multiple of 3*32 bits and the number of lines
must be even.
shows the storage format for YUV420 8-bit + CSPS data.
1123
SWPU177N – December 2009 – Revised November 2010
Camera Image Signal Processor
Copyright © 2009–2010, Texas Instruments Incorporated