CXD2450R データシートの表示（PDF） - Sony Semiconductor

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CXD2450R

Timing Generator for Progressive Scan CCD Image Sensor

Sony Semiconductor 

CXD2450R

Detailed Description of Each Data

D00 to D07 CHIP

The serial interface data is loaded to the CXD2450R when D00 and D07 are 1. However, this assumes that

either the EBCKSM pin is low and D64 to D71 CHKSUM is satisfied or the EBCKSM pin is high.

MSB

LSB

D07 D06 D05 D04 D03 D02 D01 D00

Function

10

00

0

0 0 1 Loading to the CXD2450R

Note that when SEN is shared with other ICs and identification is performed using CHIP-ID, the CXD2450R

data must be positioned immediately before the load timing, that is to say at the very end.

D08 to D15 CTGRY

Of the data provided to the CXD2450R by the serial interface, the CXD2450R loads D16 and subsequent

data to the control data register side when D08 is 0, and to the adjustment data register side when D08 is 1.

However, this assumes that the CXD2450R is selected by CHIP and that either the EBCKSM pin is low and

D64 to D71 CHKSUM is satisfied or the EBCKSM pin is high.

MSB

LSB

D15 D14 D13 D12 D11 D10 D09 D08

Function

00

00

0

0 0 0 Loading to the control data register side

00

00

0

0 0 1 Loading to the adjustment data register side

Note that the CXD2450R cannot apply both categories simultaneously during the same vertical interval. Also,

care should be taken as the data is overwritten even if the same category is applied.

D16 to D35 Electronic shutter mode

The CXD2450R's electronic shutter mode can be switched as follows by SMD D16 to D17 . Handling of the

data from D18 to D35 differs according to the mode, and is explained in detail below.

D17 D16

Description of operation

X

0 VSUB stopped mode

0

1 High-speed/low-speed shutter mode

1

1 HTSG control mode

The electronic shutter data is expressed as shown in the table below using Shut.HD as an example.

MSB

LSB

D35 D34 D33 D32 D31 D30 D29 D28 D27 D26

01

11

0

000

1

1

↓

↓

↓

1

C

3

Shut.HD is expressed as 1C3h .

[VSUB stopped mode]

During this mode, the data from D18 to D35 is invalid. The shutter speed is 1/60 s during monitoring drive

mode, and 1/30 s during recording drive mode.

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