7.4.2 MODE_SEL[1:0]
Configuration of the device may be done either through the MODE_SEL[1:0] input pins or through the configuration register bits. A pullup resistor and a pulldown resistor of suggested values may be used to set the voltage ratio of the MODE_SEL[1:0] inputs (VR4) and VDD33 to select one of the other eight possible selected modes. See Table 7 and Table 8. Possible configurations are shown in Figure 28.
Table 7. Configuration Select (MODE_SEL0)
NO. |
VMODE VOLTAGE |
VMODE
TARGET VOLTAGE |
SUGGESTED STRAP RESISTORS
(1% TOLERANCE) |
OUTPUT
MODE |
VTYP |
VDD33 = 3.3 V |
R1 (kΩ) |
R2 (kΩ) |
0 |
0 |
0 |
Open |
10 |
4 data lanes.
1 CSI port active (determined by MODE_SEL1 CSI_SEL bit). |
1 |
0.169 × V(VDD33) |
0.559 |
73.2 |
15 |
4 data lanes.
Both CSI ports active (overrides MODE_SEL1). |
2 |
0.230 × V(VDD33) |
0.757 |
66.5 |
20 |
2 data lanes.
1 CSI port active (determined by MODE_SEL1 CSI_SEL bit). |
3 |
0.295 × V(VDD33) |
0.974 |
59 |
24.9 |
2 data lanes.
Both CSI port active (overrides MODE_SEL1). |
4 |
0.376 × V(VDD33) |
1.241 |
49.9 |
30.1 |
RESERVED |
5 |
0.466 × V(VDD33) |
1.538 |
46.4 |
40.2 |
RESERVED |
6 |
0.556 × V(VDD33) |
1.835 |
40.2 |
49.9 |
RESERVED |
7 |
0.801 × V(VDD33) |
2.642 |
18.7 |
75 |
RESERVED |
Table 8. Configuration Select (MODE_SEL1)
NO. |
VMODE VOLTAGE |
VMODE
TARGET VOLTAGE |
SUGGESTED STRAP RESISTORS
(1% TOLERANCE) |
CSI_SEL
(CSI PORT) |
HIGH-SPEED BACK CHANNEL |
INPUT
MODE |
VTYP |
VDD33 = 3.3 V |
R1 (kΩ) |
R2 (kΩ) |
0 |
0 |
0 |
Open |
10 |
CSI0 |
5 Mbps |
STP |
1 |
0.169 × V(VDD33) |
0.559 |
73.2 |
15 |
CSI0 |
5 Mbps |
Coax |
2 |
0.230 × V(VDD33) |
0.757 |
66.5 |
20 |
CSI0 |
20 Mbps |
STP |
3 |
0.295 × V(VDD33) |
0.974 |
59 |
24.9 |
CSI0 |
20 Mbps |
Coax |
4 |
0.376 × V(VDD33) |
1.241 |
49.9 |
30.1 |
CSI1 |
5 Mbps |
STP |
5 |
0.466 × V(VDD33) |
1.538 |
46.4 |
40.2 |
CSI1 |
5 Mbps |
Coax |
6 |
0.556 × V(VDD33) |
1.835 |
40.2 |
49.9 |
CSI1 |
20 Mbps |
STP |
7 |
0.801 × V(VDD33) |
2.642 |
18.7 |
75 |
CSI1 |
20 Mbps |
Coax |