STV3550B STMicroelectronics, STV3550B Datasheet - Page 99
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STV3550B
Manufacturer Part Number
STV3550B
Description
Manufacturer
STMicroelectronics
Datasheet
1.STV3550B.pdf
(145 pages)
Specifications of STV3550B
Operating Temperature (min)
0C
Operating Temperature (max)
70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / Rohs Status
Compliant
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STV3550
7.7
7.7.1
7.7.2
Inter integrated circuit bus (I
Power off mode
At reset, the ADC is in power off mode. In power off mode, the ADC consumes zero power.
To switch into power on mode, you must first pass through standby mode and wait for a
stabilization time-out of 1 ms.
Standby mode
A standby mode is available to reduce total chip power consumption while maintaining a
rapid response time; i.e. to switch from standby to power on mode, a time-out of only 15 µs
is required.
The SSC2 is a high-speed synchronous serial interface which can be used to interface to a
wide variety of serial memories, remote control receivers, and other microcontrollers.
There are a number of serial interface standards for these. The SSC2 supports the I²C bus.
The general programmable features should also allow it to interface to other serial bus
standards.
The SSC2 supports full-duplex and half-duplex synchronous communication when used in
conjunction with the PIO for output and input pad control.
It uses a 2 PIO pad interface: serial clock “SCLK”, serial data in/out “SDA”. These PIO pads
are connected to the SSC2 clock/data interface pins in a configuration which allows their
direction to be changed when in master or slave mode.
The serial clock signal is either generated by the SSC2 (in master mode) or received from
an external master (in slave mode). The output and input data is synchronized to the serial
clock.
The following features are programmable: baud rate, data width, shift direction (heading
control), clock polarity and clock phase.
The I²C features include: multi-master arbitration, acknowledge generation, start/stop
condition generation/detection and clock stretching. These allow software to fully implement
all aspects of the standard e.g. master and slave mode, multi-master mode, 10 bit
addressing and fast mode.
Basic features
Each STV3550 I
●
●
●
Functional description
The basic architecture of the SSC2 is shown in
Control of the direction, as an input, output or bi-directional, of the SCL and SDA pins is
done in software by configuring the PIO pads.
Possibility of swapping SCL and SDA lines
Selection one SCL, SDA couple between two choices
Each STV3550 I²C cell can be connected to four I²C buses
2
C cell has the following features:
2
C)
Figure
65.
TV chassis control
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