STV0974E/TR STMicroelectronics, STV0974E/TR Datasheet - Page 48

• Manufacturer Part Number: STV0974E/TR
• Description: IC DSP IMAGING VGA CMOS 6X6TFBGA
• Manufacturer: STMicroelectronics

Specifications of STV0974E/TR

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 56-TFBGA
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• For Use With: 497-3891 - KIT DEMO W/VS6552
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3887-2; STV0974E/TR

STV0974
Note:
Register Group 6
Table 33: Flash mode management [register group 6]
Access to the bits mentioned here above is done through a read-modify-write sequence. As an
example, when torch mode is set:
- when in idle mode:
set 0x8A44 bit[6] to 0 to enable the torch mode
set 0x8A43 bit[2:0] to 7 to light the torch (if the torch is active high)
- go into required Active mode (still/live or ViewFinder):
set 0x8A43 bit[2:0] to 0 to extinguish the torch
In the case of flash mode:
- when in idle mode:
set 0x8A45 bit[6] to 1 to set the flash pulse active low (default setting is flash pulse active high)
set 0x88D4 bit[2:0] to 7 to set the flash pulse length to 8 video lines
set 0xA104 bit [7:0] to 0 to set 0 transfer frame delay
set 0xA500 bit[3:0] to 5 to set white balance to “daylight” fixed setting
- go into flash mode:
the system automatically goes back to Idle.
Torch polarity
Torch control
Flash pulse
polarity
Flash pulse length
Name
0x8A43
0x8A44
0x8A45
0x88D4
Index
R/W
R/W
R/W
R/W
R/W
State
code
I
I
I
I
Data
type
I
I
I
I
RRRR.RDDD
RRR.R000
RDRR.RRRR
R1RR.RRRR
RDRR.RRRR
R0RR.RRRR
RRRR.RDDD
0000.0000
Format
default
Bit[2:0]=0: Torch output (pin
DIO12) signal is low
Bit[2:0]=7: Torch output (pin
DIO12) signal is high
Bit[6]=0: Torch output (pin DIO12)
pad enable.
Bit[6]=1: Torch output (pin DIO12)
pad in high impedance
Bit[6]=0: Flash pulse active high.
Bit[6]=1: Flash pulse active low.
Bit[2:0]: line length - 1
Default is 0, corresponding to 1
video line (maximum pulse allowed
is 8 video lines).
Functional description
Description
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