CXD2450R データシートの表示（PDF） - Sony Semiconductor
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CXD2450R Datasheet PDF : 30 Pages
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CXD2450R
D48 EXPOSE
0: No operation
1: VSUB for recording exposure is generated.
This control specification is such that one VSUB pulse is always generated during the horizontal interval
immediately following the readout portion even if the electronic shutter speed is set to 1/60s (SMD = 00). This
mode is closely related to D51 PSMT, so see D51 regarding the control.
D51 PSMT
0: Driving is controlled in accordance with monitoring drive mode under the assumption that the vertical/
horizontal sync signals are input.
1: Driving is controlled in accordance with recording drive mode under the assumption that the vertical/
horizontal sync signals are input.
See the timing charts for the vertical/horizontal sync signals in accordance with each mode.
Note that when switching from monitoring drive to recording drive mode, the pixels decimated thus far must be
cleaned.
Concretely, this operation is supported by generating VSUB, but the CXD2450R facilitates this control by
using D48 EXPOSE. (See the figure.)
FRI
V2a
VSUB
Exposure time
WEN
SMD
EXPOSE
PSMT
Mode
00
0
0
Monitoring
00
1
0
Monitoring
00
0
1
Recording
00
0
0
Monitoring
Image of switching from monitoring drive mode to recording drive mode
D52 SSGSEL
0: Internal SSG functions are stopped.
1: Internal SSG functions operate, and FRO and HRO are generated.
When generation is stopped, these pulses are fixed low.
D53 WENSEL
0: WEN is generated.
1: WEN generation is stopped.
When generation is stopped, operation is the same as for D52 SSGSEL.
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