ALLIED Vision Technologies Marlin F-201 - Manual (Page 81)

Description of the data path
MARLIN Technical Manual V2.4.0
81
The IIDC register brightness at offset 800h is used for this purpose.
The following table shows the BRIGHTNESS register:
Note
L
• Setting the gain does not change the offset (black
value) for CCD models.
• Setting the gain changes the offset (black value) for
CMOS models. This is due to the lack of black clamping
circuitry in sensor.
Register Name Field Bit Description
0xF0F00800 BRIGHTNESS Presence_Inq [0] Presence of this feature:
0: N/A
1: Available
Abs_Control [1] Absolute value control
O: Control with value in the value field
1: Control with value in the absolute
value CSR
If this bit= 1 the value in the value field
has to be ignored
--- [2..4] Reserved
One_Push [5] Write: Set bit high to start
Read: Status of the feature:
Bit high: WIP
Bit low: Ready
ON_OFF [6] Write: ON or OFF this feature
Read: read a status
0: OFF
1: ON
A_M_MODE [7] Write: set mode
Read: read current mode
0: MANUAL
1: AUTO
--- [8..19] Reserved
Value [20..31] Read/Write Value; this field is ignored
when writing the value in Auto or OFF
mode; if readout capability is not avail-
able reading this field has no meaning.
Table 34: CSR: Brightness