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参数资料
| 型号： | CS7615 |
| 厂商： | Cirrus Logic, Inc. |
| 英文描述： | CCD IMAGER ANALOG PROCESSOR |
| 中文描述： | CCD成像器模拟处理器 |
| 文件页数： | 16/36页 |
| 文件大小： | 621K |
| 代理商： | CS7615 |
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CS7615
16
DS231PP6
SERIAL CONTROL BUS
The serial control bus protocol is an 8-bit protocol
controlled receiver. To the receiver, the control bus
looks like an 8-bit bi-directional channel down
which short packets are sent or received. Each
source device appears to the receiver as a set of 8-
bit registers, which are addressable to a device
through a station address. Packets are used to write
and read the contents of these device registers.
There are three packet formats: WRITE format,
ADDRESS SET format, and READ format. Each
packet is addressed to a device by its station ad-
dress. The LSB of the station address is the data di-
rection bit. This bit is set LOW in the WRITE and
ADDRESS SET packets, and it is set HIGH for
READ packets. The receiver can read and write to
non-existent registers within the selected device.
WRITE operations will have no effect; READ op-
erations will return a value of 00h.
Station Address
The CS7615 rev A default station address is A8h
for writes and A9h for reads. Subsequent versions
of the CS7615, starting with rev B, will use a de-
fault station address of 68h for writes and 69h for
reads.
The station address can be changed by writing a
new base station address to internal I
2
C register
FEh. Note that the station address register de-
scribes only the 7 MSBs of the CS7615 station ad-
dress. The base write address will need to be right
shifted by one place before being written into the
FEh register.
Write Operations
The WRITE format consists of a three-byte packet.
The first byte is the station address with the data di-
rection bit set LOW to indicate a write. The second
byte is the device register address (0..255). The
third byte is the register data (0..255). No extra
bytes should be sent.
Table 3. WRITE Format Packet
Address Set Operation
The ADDRESS SET format consists of a two-byte
packet which sets the address of a subsequent
READ operation. The first byte of the station Ad-
dress with the LSB (data direction bit) set LOW to
indicate a write operation. The second byte is the
register address (0..255). The ADDRESS SET for-
mat is the same as the WRITE format, without the
register data.
Table 4. ADDRESS SET Format Packet Operation
Read Operations
The READ operation consist of two or more bytes.
The first byte is the station address with the LSB
(data direction bit) set HIGH indicating a read op-
eration. The addressed device then sends one or
more bytes back from the register last addressed by
the previous WRITE operation, or ADDRESS SET
operation.
Table 5. READ Format Packet.
Byte Sequence
First Byte
WRITE Format Packet Detail
Station Address
with LSB Set LOW
Device Register Address (0..255)
Register Data (0..255)
Second Byte
Third Byte
Byte Sequence
First Byte
ADDRESS SET format
Packet Details
Station Address
with LSB Set LOW
Device Register Address (0..255)
Second Byte
Byte Sequence
First Byte
READ Format Packet Details
Station Address with LSB set
HIGH; Source Device then
Returns One Byte of Register
Data (0..255)
Returned data from CS7615
Second Byte
相关PDF资料 |
PDF描述 |
|---|---|
| CS7615-KQ | CCD IMAGER ANALOG PROCESSOR |
| CS7620 | CCD IMAGER ANALOG PROCESSOR |
| CS7620-IQ | CCD IMAGER ANALOG PROCESSOR |
| CS7622 | CCD Imager Analog Processor |
| CS7622-IQ | CCD Imager Analog Processor |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CS7615-KQ | 制造商:Cirrus Logic 功能描述: |
| CS7620 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:CCD IMAGER ANALOG PROCESSOR |
| CS7620-IQ | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:CCD IMAGER ANALOG PROCESSOR |
| CS7621-4 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Optoelectronic |
| CS7622 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:CCD Imager Analog Processor |
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