Ricoh FV-L030B1 manual 27/32

Command No.	Command Descriptions
20H:	[Exposure time (H) of the electronic shutter] Initial Data: SVR[150] = 0, Data Range: 0 to 4095
SVR[70]	Sets the preset shutter speed (or CCD exposure time) for electronic shutter.
21H:
SVR[158]	The preset shutter speed is defined by the following formula.
	Exposure time (shutter speed) = SVR[150] x (1H	cycle time) + SHR[150] x (1CLK cycle time)
	Notes:
	1. The camera works with the shutter off position (maximum frame exposure time) when both SVR and SHR
	are set at “0”.
	2. The camera works with the minimum shutter speed when this value is set to 0 and the value of SHR is set
	between 1 and 306.
	3. The value is replaced with 4095 automatically when the value set greater than 4095.
22H:	[Exposure time (CLK) of the electronic shutter] Initial Data: SHR[150] = 0, Data Range: 0 to 779
SHR[70]	Sets the preset shutter speed (or CCD exposure time) for electronic shutter.
23H:
SHR[158]	The previous section, the preset shutter speed is defined by the following formula:
	Preset shutter speed = SVR[150] x (1H cycle ti	me) + SHR[150] x (1CLK cycle time)
	Note 1: The camera works with the shutter off position (maximum frame exposure time) when both SVR and SHR
	are set at “0”.
	Note 2: The camera works with the minimum shutter speed when SVR is set to 0 and this value is set between 1
	and 306.
	Note 3: The value replaces by 779 automatically when the value set greater than 779.
24H:	[Start line of the variable partial scanning] Initial Data: PSR[150] = 0, Data Range: 0 to 493
PSR[7..0]	Sets the start line number of the variable partial scanning area.
25H:
PSR[158]	Actual start line of the partial scanning = this value + 1
	Note 1: The camera works with full scanning mode when the value of (PSR[ ] + PWR[ ]) is greater than 494.
	Note 2: The value replaces by 493 automatically when the value set greater than 493
26H:	[Effective line numbers in the variable partial scanning] Initial Data: PWR[150] = 494, Data Range: 0 to 494
PWR[70]	Sets the number of the total effective lines (image height) in the variable partial scanning mode.
27H:
PWR[158]	Notes:
	1. The value replaces by 494 automatically when the value set greater than 494.
	2. The camera works with full scanning mode when the value of (PSR[ ] + PWR[ ]) is greater than 2058.

FVL030B1	27/32
User’s Guide Rev. 1.01