CP830F Service Manual
5.4.2 ACQUISITION FEATURES
Multistandard Digital Data Slicer
Parallel Multi-norm Slicing (TTX, VPS, WSS)
Four Different Framing Codes Available
Data Caption only Limited by available Memory
Programmable VBI-buffer
Full Channel Data Slicing Supported
Fully Digital Signal Processing
Noise Measurement and Controlled Noise Compensation
Attenuation Measurement and Compensation
Group Delay Measurement and Compensation
Exact Decoding of Echo Disturbed Signals
5.4.3 PORTS
One 8-bit I/O-port with open drain output and optional I 2 C Bus emulation support (Port 0)
Two 8-bit multifunction I/O-ports (Port 1, Port 3)
One 4-bit port working as digital or analogue inputs for the ADC (Port 2)
One 2-bit I/O-port with secondary functions (P4.2, 4.3, 4.7)
5.4.4 -CONTROLLER I/O PIN CONFIGURATION AND FUNCTION TABLE
CONFIGURATION
PINNAMEDESCRIPTION
STAND BYTV ON
43Source
3S/SW2Open DrainOpen DrainLLTuner
LHAV2-16/9
HLAV2-4/3
4S/SW2Open DrainOpen DrainHHAV2-4/3
5S/SW1Open DrainOpen DrainLLTuner65Source
LHAV1-16/9
HLAV1-4/3
6S/SW1Open DrainOpen DrainHHAV1-4/3
8RESET outLowOpen DrainReset video ICs
15AFTHigh impedanceHigh impedanceAFT input? ADC input
16AGC inHigh impedanceHigh impedanceAGC input ? ADC input
17KEYHigh impedanceHigh impedanceKeyboard input ? ADC input
18OCPHigh impedanceHigh impedanceOver Current Protection ? Switch
21Mod SWHigh impedancePush PullHigh = Negative modulation, Low =
Positive modulation (L/L).
22SECAM LHigh impedancePush PullLow = L, High =L
23IRHigh impedanceHigh impedanceInfrared Interrupt input
24SOUND INTInputinputSound interrupt input-edge triggered
48AGC out--PWM outControl tuner AGC (TOP)
51LEDPush PullPush PullLow : LED Red
High : LED Green
52PowerPush Pull - LowPush Pull - HighSMPS operation mode (Burst/ ON)
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