tc5747 ETC-unknow, tc5747 Datasheet - Page 33

• Manufacturer Part Number: tc5747
• Description: Single Chip Cmos Imager With Integrated Image Signal Processor Jpeg Codec
• Manufacturer: ETC-unknow

TC5747 Preliminary Data Sheet
Single Chip CMOS Imager
4.2.9.2
The serial interface consists of three pins:
The TC5747 acts as a master of the interface. It activates the Frame signal one clock period before there is
valid data to be sent out. Transfer datum size configurable. There are three options:
DSFRM Signal
The
below.
Single Byte Transfer Mode
The 8 bits of the transfer byte are sent out on the eight following effective edges of the
the last bit of the byte is sent out, the
transfer begins on the next effective edge of
Image-line Transfer Mode
In this mode,
size should be configured on the receiving side according to the image line size, taking into consideration
the
Frame Transfer Mode
In this mode, the
image is transferred out.
The
last byte of data in the transfer is transmitted. The second mode can be used to generate an interrupt inside
the receiving device, once the complete data has been transferred.
SAV
DSFRM
DSFRM
DSCLK
DSDAT
DSFRM
Transfer datum size is a single byte.
Transfer datum size is a single line (size is according to output image size and output mode).
Transfer datum size is a single image. This configuration can be used only in a mode that combines the
SSI
-mode with the clock-qualify mode.
and
SSI Mode
– Data Serial Clock output pin
– Serial Data output pin.
signal notifies of a transfer of a complete data unit. There are three configurations, as described
– Frame signal in early-frame mode
EAV
signal duration is also configurable, to be of one clock cycle duration, or to be active until the
DSFRM
markers, if used.
DSFRM
is activated one clock before the continuous transfer of a complete image line. Transfer
signal is activated once in a frame, one clock cycle before the first byte of the
Figure 20: Single Byte Transfer Mode
DSFRM
DSCLK
signal may be active again. If it is active, the following byte
TransChip
.
27
DSCLK
signal. When