mt9v112 Micron Semiconductor Products, mt9v112 Datasheet - Page 56

• Manufacturer Part Number: mt9v112
• Description: 1/6-inch Soc Vga Cmos Digital Image Sensor
• Manufacturer: Micron Semiconductor Products

Tw o-wire Serial Bus Timing
certain minimum of master clock cycles between tran-
sitions. These are specified below in master clock
cycles.
NOTE:
NOTE:
09005aef8154a39d/09005aef8175e6cc
MT9V112_2.fm- Rev. A 1/05 EN
Figure 19: Serial Host Interface Start
Figure 20: Serial Host Interface Stop
The two-wire serial interface operation requires a
All timing are in units of master clock cycle.
After a read, the master receiver must pull down S
plete, the master must generate a no acknowledge by leaving S
bit may be used.
Figure 24: Acknowledge Signal Timing After an 8-bit Read from the Sensor
Figure 23: Acknowledge Signal Timing After an 8-bit Write to the Sensor
S
S
SCLK
DATA
DATA
Condition Timing
Condition Timing
SCLK
5
5
S
S
DATA
DATA
SCLK
SCLK
4
4
6
7
Sensor tri-states S
DATA
(turns off pull down)
Sensor pulls down
S
DATA
to acknowledge receipt of data bits. When read sequence is com-
56
pin
SOC VGA DIGITAL IMAGE SENSOR
DATA
NOTE:
NOTE:
DATA
Figure 21: Serial Host Interface Data
Figure 22: Serial Host Interface Data
S
S
pulled HIGH by a pull-up resistor off-chip.
pin
DATA
DATA
Micron Technology, Inc., reserves the right to change products or specificat ions wit hout not ice.
to float HIGH. On the following cycle, a start or stop
is driven by an off-chip transmitter.
is pulled LOW by the sensor, or allowed to be
3
6
S
S
DATA
SCLK
DATA
SCLK
Timing for Write
Timing for Read
4
5
©2004 Micron Technology, Inc. All rights reserved.
4
PRELIMINARY
MT9V112