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參數(shù)資料
| 型號： | ZR36506 |
| 英文描述： | Fast Recovery Rectifier Diodes |
| 中文描述： | 外圍芯片 |
| 文件頁數(shù)： | 67/99頁 |
| 文件大?。?/td> | 452K |
| 代理商： | ZR36506 |
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Zoran ZR 36506 USBV ision – Datasheet
Zoran Proprietary and Confidential
Camera Control S erial Port
10 -5
I I C LR NACK Mode: ( MODE= 3)
This is the IIC LRNACK (Last Read Not Acknowledged) automatic mode, and is selected when
the MODE field (d7-d4) of the SER_MODE register is set to 3. In this mode, the IICCK
frequency is set to 93.75 KHz.
In this mode, the host defines the camera address byte and the data bytes to be written to the
camera in the appropriate registers. The ZR36506 then sends these bytes automatically.
Similarly, the ZR36506 may read data bytes from the camera. The ZR36506 does not
acknowledge the last byte read from camera. This is done as a signaling to the camera that no
more bytes are needed. The waveforms for this mode of operation are specified below.
IICCK
IICDT
D7
D6
D5
D4
D3
D2
D1
D0
x
Ack
NOTE:
In both Read and Write sequence, data should be stable during the '1' state of the clock IICCK.
D7-D0 are sent by transmitter, Ack is sent by receiver.
IICCK
IICDT
Write ADDRESS
R/W Byte 1
R/W Byte 4
NOTE:
Start is defined when the IICDT turns from '1' to '0' while the IICCK is '1'. Stop is defined when
the IICDT turns from '0' to '1' while the IICCK is '1'. The Address byte is written like any other byte.
Stop
Start
Nack
Ack
Stop
Stop
End of Write sequence
End of Read sequence
IICCK
IICCK
IICDT
IICDT
In this mode, the host defines the camera address byte and the data bytes to be written to the
camera in the appropriate registers. The ZR36506 then sends these bytes automatically. The
ZR36506 may also read data bytes from the camera. The ZR36506 does not acknowledge the
last byte read (NACK).
By using the NO_STOP and CONTINUE bits, concatenation of multiple IICC transactions is
possible, in order to send or receive more than 4 bytes in a single START / STOP frame.
Additionally, by using these control bits, write/read operations may be combined with a single
STOP pattern at the end. Note that the SER_LEN parameter may be set to 0 to further support
the concatenation operation mode.
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