Acquisition Features; Ports; Controller I/O Pin Configuration And Function Table - Daewoo DTK-28 Service Manual

CP-850/F 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

PIN NAME
3 S/SW2
4 S/SW2
5 S/SW1
6 S/SW1
8 RESET out
15 AFT
16 AGC in
17 KEY
18 OCP
21 Mod SW
22 SECAM L'
23 IR
24 SOUND INTInput
48 AGC out
51 LED
52 Power
CONFIGURATION
STAND BY
Open Drain
Open Drain
Open Drain
Open Drain
Low
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
input Sound interrupt input-edge
--
Push Pull
Push Pull - Low
TV ON
Open Drain
Open Drain
Open Drain
Open Drain
Open Drain
High impedance
High impedance
High impedance
High impedance
Push Pull
Push Pull
High impedance
PWM out
Push Pull
Push Pull - High
-54-
DESCRIPTION
4 3 Source
L L Tuner
L H AV2-16/9
H L AV2-4/3
H H AV2-4/3
6 5 Source
L L Tuner
L H AV1-16/9
H L AV1-4/3
H H AV1-4/3
Reset video IC's
AFT input? ADC input
AGC input ? ADC input
Keyboard input ? ADC input
Over Current Protection ? Switch
High = Negative modulation, Low =
Positive modulation (L/L').
Low = L, High =L'
Infrared Interrupt input
triggered
Control tuner AGC (TOP)
Low : LED Red
High : LED Green
SMPS operation mode (Burst/ ON)