ZHCSIG1D August 2016 – September 2023 DS90UB960-Q1
PRODUCTION DATA
During normal operation, CSI-2 transmitter output bandwidth is reduced as it needs to transition between Low-Power and High-Speed modes. The minimum CSI-2 High-Speed data transmission overhead consists of TLPX, THS-PREPARE, THS-ZERO, THS-SYNC, THS-TRAIL, and THS-EXIT as shown in Figure 6-7. The bandwidth is further reduced when operating in Discontinuous CSI-2 Clock mode as the CSI-2 clock requires additional overhead time to transition between Low-Power and Clock Transmission modes. The minimum CSI-2 Discontinuous Clock timing overhead consists of TCLK-POST, TCLK-TRAIL, TCLK-PREPARE, TCLK-ZERO, and TCLK-PRE as shown in Figure 6-6. The typical CSI-2 timing overhead is given in Table 7-16.
CSI-2 TX Data Rate | CSI-2 TX Overhead, tCSI_Overhead [µs] | |
---|---|---|
Continuous CSI-2 Clock (0x33[1]=1) | Discontinuous CSI-2 Clock (0x33[1]=0) | |
1.664 Gbps | 0.73 | 1.68 |
1.6 Gbps | 0.76 | 1.74 |
1.472 Gbps | 0.83 | 1.89 |
1.2 Gbps | 0.91 | 1.92 |
800 Mbps | 0.93 | 2.06 |
400 Mbps | 1.30 | 2.65 |
For Best-Effort Round Robin, Basic Synchronized or Line-Interleaved CSI-2 Forwarding, the maximum CSI-2 bandwidth for each CSI-2 port is defined in Equation 2.
For Line-Concatenated CSI-2 Forwarding, the maximum CSI-2 output bandwidth for each CSI-2 port is defined in Equation 3.
where