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Write-in Adjacent Registers
E.g. Write to registers 0x50,0x51,0x52 with value 0xec,0x37,0x20.
1
2
↓
↓
Master
ADDR
Start
0x24
CM50
Suspend
When register values have been written in the engine via I
2
commands and the I
C _SCL bus will be pulled down to low level. After the engine responds commands, I
and resume responding communication.
Response time vary among different commands. I
communication. Use serial command interface after communication is resumed.
Operating Mode
Standby Mode
It is the lowest power consumption mode for the engine. In this mode the engine is only influenced by the level change of Power
Enable Pin. When Power Enable is in low level, the engine stays in Standby Mode ; while in high level, the engine is switched to
Ready Mode.
No matter what mode the engine is in, when the Power Enable Pin is changed to low level, the engine will come into Standby Mode.
Ready Mode
The engine can receive I
images and illumination changes. In Ready Mode, CIS does not work or output image data. Ready Mode consumes less power than
CIS Standy Mode.
CIS Standby Mode
Switch over to CIS Standby Mode from Continuous Mode so as to make CIS standby temperarily. The status parameters setted before
coming into standby is saved and Continuous Mode can be resumed.
CIS Standby Mode can be switched to Continuous Mode, Ready Modeor Standby Mode.
Continuous Mode
When the engine is in Continuous Mode, CIS is running and outputs signals like Video Data, LINE_Valid, Frame_Valid and PCLK in
a row. Meanwhile the CIS controls Aimer LED and Illumination LED .
3
4
5
↓
REG
ACK
ACK
0x50
↑
↑
2
C _SCL levels can be used to judge whether the engine is suspended for
2
C communication in Ready Mode and handle communication messages such as initiating CIS to output
6
7
8
↓
↓
0xec
ACK
0x37
↑
2
C, the engine will not respond I
9
10
11
↓
ACK
0x20
ACK
↑
↑
2
C communication during its repsonse to
2
C _SCL will be pulled up
12
↓
Stop
16
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