データシートサーチシステム |
|
PYTHON480 データシート(PDF) 34 Page - ON Semiconductor |
|
PYTHON480 データシート(HTML) 34 Page - ON Semiconductor |
34 / 69 page PYTHON 480 www.onsemi.com 34 AEC Control Range The control range for each of the exposure parameters can be pre−programmed in the sensor. Table 24 lists the relevant registers. Table 24. MINIMUM AND MAXIMUM EXPOSURE CONTROL PARAMETERS Register Name Description 168[15:0] min_exposure Lower bound for the integration time applied by the AEC 169[1:0] min_mux_gain Lower bound for the first stage analog amplifier. This stage has two configurations with the following approximative gains: 0x1 = 1x 0x4 = 2x 169[3:2] min_afe_gain Lower bound for the second stage analog amplifier. This stage has two configurations with the following approximative gain settings: 0x7 = 1x 0x1 = 1.75x 169[15:4] min_digital_gain Lower bound for the digital gain stage. This configuration specifies the effective gain in 5.7 unsigned format 170[15:0] max_exposure Upper bound for the integration time applied by the AEC 171[1:0] max_mux_gain Upper bound for the first stage analog amplifier. This stage has two configurations with the following approximative gains: 0x1 = 1x 0x4 = 2x 171[3:2] max_afe_gain Upper bound for the second stage analog amplifier This stage has two configurations with the following approximative gain settings: 0x7 = 1x 0x1 = 1.75x 171[15:4] max_digit- al_gain Upper bound for the digital gain stage. This configuration specifies the effective gain in 5.7 unsigned format AEC Update Frequency As an integration time update has a latency of one frame, the exposure control parameters are evaluated and updated every other frame. Note: The gain update latency must be postpone to match the integration time latency. This is done by asserting the gain_lat_comp register on address 204[13]. Exposure Control Status Registers Configured integration and gain parameters are reported to the user by means of status registers. The sensor provides two levels of reporting: the status registers reported in the AEC address space are updated once the parameters are recalculated and requested to the internal sequencer. The status registers residing in the sequencer’s address space on the other hand are updated once these parameters are taking effect on the image readout. Refer to Table 25 reflecting the AEC and Sequencer Status registers. Table 25. EXPOSURE CONTROL STATUS REGISTERS Register Name Description AEC Status Registers 184[15:0] total_pixels Total number of pixels taken into account for the AEC statistics. 186[9:0] average Calculated average illumination level for the current frame. 187[15:0] exposure AEC calculated exposure. Note: this parameter is updated at the frame end. 188[1:0] mux_gain AEC calculated analog gain (1st stage) Note: this parameter is updated at the frame end. 188[3:2] afe_gain AEC calculated analog gain (2st stage) Note: this parameter is updated at the frame end. 188[15:4] digital_gain AEC calculated digital gain (5.7 unsigned format) Note: this parameter is updated at the frame end. |
同様の部品番号 - PYTHON480 |
|
同様の説明 - PYTHON480 |
|
|
リンク URL |
プライバシーポリシー |
ALLDATASHEET.JP |
ALLDATASHEETはお客様のビジネスに役立ちますか? [ DONATE ] |
Alldatasheetは | 広告 | お問い合わせ | プライバシーポリシー | リンク交換 | メーカーリスト All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |