Daewoo DTM-2930MP, Service Manual, Page: 31 / 66

1C DESCRIPTION
1.3 PINNING
QFP 90pin Symbol Short Description
1
v s s c
Ground
2
INT0/P0.5
“external interrupt 0 or port 0.5(4mA current
sinkingcapability for direct drive of LEDs)”
3 VDDC digital supply to core(1.8V)
4 P1.0/INT1
port 1.0 or external interrupt 1
5 P1.1/T0
port 1.1 or Counter/Timer 0 input
6
Р1.3/T1 port 1.3 or Counter/Timer 1 input
7 P1.6/SCL port 1.6 or l2C-bus clock line
8
P1,7/SDA
port 1.7 or l2C-bus data line
9
VDDP(3.3V) s u p p ly to p e rip h e ry and o n -c h ip v o lta g e
regulator(3.3V)
10
P2.0/TPWM port 2.0 or Tuning PWM output
11
P2.1/PWM0
port 2.1 or PWM0 output
12
P3.0/ADC0 port 3.0 or ADC0 input
13 P3.1/ADC1 port 3.1 or ADC1 input
14 P3.2/ADC2 port 3.2 or ADC2 input
15 P3.3/ADC3 port 3.3 or ADC3 input
16 VDDA(3.3V) supply(3.3V)
17 VREF_GHPR negative reference ground SDAC(OV)
18 XTALIN crystal oscillator input
19 XTALOUT crystal oscillator output
20 VSSA1 Ground
21 DECDIG decoupling digital supply
22 VP1 1st supply voltage TV-pro5V)
23 PH2LF phase-2 filter
24 PH1LF phase-1 filter
25 GND1 ground 1 for TV-processor
26 SECPLL SECAM PLL decoupling
27 DECBG bandgap decoupling
28 VIFIN1 IF input 1
29 VIFIN2 IF input 2
30 VSC vertical sawtooth capacitor
31 IREF reference current input
32 GNDIF ground connection for IF amplifier
33 SIFIN1/DVBIN1(2) SIF input 1/ DVB input 1
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