ST92195C STMicroelectronics, ST92195C Datasheet - Page 9

• Manufacturer Part Number: ST92195C
• Description: 48-96 Kbyte Rom Hcmos Mcu With On-screen Display And Teletext Data Slicer
• Manufacturer: STMicroelectronics

INTRODUCTION (Cont’d)
1.1.7 Teletext, VPS and WSS Data Slicers
The three on-board data slicers using a single ex-
ternal crystal are used to extract the Teletext, VPS
and WSS information from the video signal. Hard-
ware Hamming decoding is provided.
1.1.8 Voltage Synthesis Tuning Control
14-bit Voltage Synthesis using the PWM (Pulse
Width Modulation)/BRM (Bit Rate Modulation)
technique can be used to generate tuning voltages
for TV set applications. The tuning voltage is out-
put on one of two separate output pins.
1.1.9 PWM Output
Control of TV settings can be made with up to
eight 8-bit PWM outputs, with a maximum frequen-
cy of 23,437Hz at 8-bit resolution (INTCLK = 12
MHz). Low resolutions with higher frequency oper-
ation can be programmed.
1.1.10 Serial Peripheral Interface (SPI)
The SPI bus is used to communicate with external
devices via the SPI, or I²C bus communication
standards. The SPI uses a single data line for data
input and output. A second line is used for a syn-
chronous clock signal.
1.1.11 Standard Timer (STIM)
The ST92195C and ST92195D have one or two
Standard Timer(s) that include a programmable
16-bit down counter and an associated 8-bit pres-
caler with Single and Continuous counting modes.
1.1.12 I²C Bus Interface
The ST92195D versions have one I²C bus inter-
face. The I²C bus is a synchronous serial bus for
connecting multiple devices using a data line and
a clock line. Multimaster and slave modes are sup-
ported. Up to two channels are supported. The I²C
interface supports 7-bit addressing. It supports
speeds of up to 800 KHz. Bus events (Bus busy,
slave address recognised) and error conditions
are automatically flagged in peripheral registers
and interrupts are optionally generated.
1.1.13 Analog/Digital Converter (ADC)
In addition there is a 4-channel Analog to Digital
Converter with integral sample and hold, fast
5.75µs conversion time and 6-bit guaranteed reso-
lution.
ST92195C/D - GENERAL DESCRIPTION
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