VV5409 CMOS Monochrome Sensor Datasheet (Restricted) Rev 1.0
6.6 Register descriptions
6.6.1 Status Registers - [0 - 15]
[0-1] - DeviceH and DeviceL
These registers provide read-only information, which identifies the sensor type, coded as a 12-bit number,
and a 4-bit mask set revision identifier. The device identification number, for VV5409 is 409 i.e. 0001 1001
01112. The initial mask revision identifier is 0 i.e. 00002.
Bits
Function
7:0 Device type identifier
Default
Comment
0001 10012 Most significant 8 bits of the 12 bit code identifying
the chip type
Table 6.3 : [0] - DeviceH
Bits
Function
Default
Comment
7:4 Device type identifier
01112
Least significant 4 bits of the 12 bit code identifying
the chip type
3:0 Mask set revision identifier
10102 or
11012
Table 6.4 : [1] - DeviceL
[2] - Status0
Bit
Function
Default
Comment
0 Exposure value update pending
1 Gain value update pending
2 Clock divisor update pending
3 Black calibration fail flag
4 Odd/even frame
5 Video Timing update pending
6 Debounced Digital Input Flag
7 Auto-load Successful
0
Exposure sent, but not yet consumed by the
exposure controller
0
Gain value sent, but not yet consumed by the
exposure controller
0
Clock divisor sent, but not yet consumed by the
exposure controller
0
If the black calibration has failed, this flag will be
raised. It will stay active until the last line of the
next successful black calibration
1
The flag, will toggle-state on alternate frames
0
New line, or frame length, value written, but not
yet consumed by the video timing controller
0
Debounced, and re-timed version, of DIN pin. If
set, cleared at end of status line
0
Set if auto-load has been completed
successfully, (where used) i.e. E2PROM present
and no serial communications errors have
occurred.
Table 6.5 : [2] - Status0
Commercial In Confidence
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08/10/98
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VV5409 CMOS Monochrome Sensor Datasheet (Restricted) Rev 1.0
[3-4] - Line_countH & Line_countL
Register
Index
3
4
Bits
Function
Default
Comment
0:0 Current line count MSB
7:0 Current line count LSB
-
Displays current line count
-
Table 6.6 : Current Line Counter Value.
6.6.2 Setup Registers - [16 - 31]
[16] - Setup0
Bit
Function
Recommended
setting
Comment
0 Low Power Mode:
Off / On
1 Sleep Mode:
Off / On
2 Soft Reset
Off / On
3 Frame/Field Rate select:
25 fps (PAL) / 30 fps (NTSC)
4 Tri-state output data-bus
Outputs Enabled / Tri-state
5 Re-time tri-state update.
Off / On
7:6 Video Timing Mode Select
0
(Default 1)
0
0
1 (NTSC)
0 (PAL)
0
0
Powers down the sensor-array. The output
data-bus goes to FH. On power-up, the sensor
enters low power mode
Puts the sensor-array into reset. The output
data-bus goes to FH
Setting this bit, resets the sensor to its power-
up defaults. This bit is also reset
Frame/Field Rate select
On power-up, the data-bus pads are enabled
by default
Re-time, new tri-state value to a field boundary
As required
(Defult 00)
00 - CIF Timing Modes
01 - PAL/ NTSC 13.5 MHz Timing Modes
10 - PAL/NTSC 3.2 fsc Timing Modes
11 - unused.
Table 6.7 : Setup0 [16]
Video
Mode
0
1
2
3
setup0 setup0
bits bit [3]
[7:6]
002
0
1
012
0
1
Pixel
Clock
Divisor
2
2
2
2
Video
Data
356 x 292
356 x 292
356 x 292
306 x 244
Line
Length
471
393
432
429
Field
Length
304
304
312/313
262/263
Table 6.8 : Video Timing Modes
Data
Format
4-wire
4-wire
4-wire
4-wire
Comment
CIF - 25 fps
CIF - 30 fps
PAL(13.5 MHz)
NTSC
(13.5 MHz)
Commercial In Confidence
cd38041a.fm
08/10/98
48