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CSG14K_CSG8K 数据表(PDF) 73 Page - OSRAM GmbH |
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CSG14K_CSG8K 数据表(HTML) 73 Page - OSRAM GmbH |
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73 / 114 page  Document Feedback CSG14K_CSG8K Functional Description Datasheet • PUBLIC DS000571 • v2-01 • 2023-Feb-10 113 │ 72 7.5 Configuring Readout and Exposure 7.5.1 Frame Time and Exposure Time Figure 84: Frame and Exposure Time Registers Reg. Name Bank Addr Bits Description CTRL_MODE 0 11 [2:0] Sets the sensor control mode TIME_UNIT 4 5-6 [13:0] Unit for frame, glob and exposure time MIN_FRAME_TIME 4 8-9 [15:0] Sets the minimal frame time in TIME_UNITs EXP_TIME_L 4 14-15 [15:0] Sets the exposure time in TIME_UNITs GLOB_TIME 4 10 [15:0] See Equation 5 below GRAN_TG 3 7 [7:0] Scale factor dependent on the CLK_PIX period The table below briefly recaps the exposure and frame time configurability in the various sensor control modes (see section 7.2.7). Figure 85: Sensor Control Modes CTRL_MODE Sensor Control Modes Mode Frame Time Exposure Time 0 SEN.1 Full External Via external timing Via external timing 1 SEN.2 Programmed External Via external timing Via registers 2 SEN.3 Triggered Internal Via registers Via registers 3 SEN.4 Streaming Internal Via registers Via registers Both Frame time and Exposure time are specified via registers in number of Time Units (TU). The length of a Time Unit (TU) is itself register-programmable in 'number of CLK_PIX cycles'. The period of CLK_PIX (tCLK_PIX) depends on the output data width as shown in the table below. The effective data rate (EDR) is set by configuring the PLL (see section 7.4.3). Figure 86: CLK_PIX Period [ns] for Different Data Width Modes Parameter IMG.1-3 10-bit IMG.4,5,7 12-bit tCLK_PIX [ns] 10/EDR [Gbit/s] 12/EDR [Gbit/s] Register GRAN_TG needs to be scaled with the CLK_PIX period that is used, according to Equation 4. Parameter GLOB_BASE is image mode dependent (see Figure 62). |
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