SITRONICS LCD-1502, Руководство по обслуживанию

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O
Information of ICs
Pin No. Pin Name Function Pin No. Pin Name Function
1 P2.0/PWM
output for 14-bit high precision Pulse Width
Modulator (PWM)
28 TEST
not available; connect this pin to V
SSA
2 P2.1/PWM0 ouputs for 6-bit PWMs 0 to 6 29 COR
3 P2.2/PWM1 output for 6-bit PWMs 0 to 6 30 P3.4/PWM7 described above
4 P2.3/PWM2 output for 6-bit PWMs 0 to 6 31 V
DDA
analog supply voltage (3.3V)
5 P2.4/PWM3 output for 6-bit PWMs 0 to 6 32 B Blue colour information pixel rate output
6 P2.5/PWM4 output for 6-bit PWMs 0 to 6 33 G Green colour information pixel rate output
7 P2.6/PWM5 output for 6-bit PWMs 0 to 6 34 R Red colour information pixel rate output
8 P2.7/PWM6 output for 6-bit PWMs 0 to 6 35 VDS
video/data switch push-pull output for pixel
rate fast blanking
9 P3.0/ADC0
inputs for the software Analog-to-Digital-Converter
(ADC) facility
36 HSYNC horizontal sync pulse input
10 P3.1/ADC1
inputs for the software Analog-to-Digital-Converter
(ADC) facility
37 VSYNC vertical sync pulse input
11 P3.2/ADC2
inputs for the software Analog-to-Digital-Converter
(ADC) facility
38 V
SSP
periphery ground
12 P3.3/ADC3
inputs for the software Analog-to-Digital-Converter
(ADC) facility
39 V
DDC
core supply voltage (+3.3V)
13 Vssc core ground 40 OSCGND crystal oscillator ground
14 SCL(NVRAM)
I
2
C-bus Serial Clock input to Non-Volatile RAM
41 XTALIN 12 MHz crystal oscillator input
15 SDA(NVRAM)
I
2
C-bus Serial Data input/output (Non-Volatie
RAM)
42 XTALOUT 12 MHz crystal oscillator ouput
16 P0.2 input/output for general use 43 RESET reset input
17 P0.3 input/output for general use 44 V
DDP
periphery supply voltage (+3.3V)
18 P0.4 input/output for general use 45 P1.0 input/output for general use
19 P0.5
8 mA current sinking capability for direct drive of
Light Emitting Diodes (LEDs)
46 P1.1 input/output for general use
20 P0.6
8 mA current sinking capability for direct drive of
Light Emitting Diodes (LEDs)
47 P1.2 input/output for general use
21 P0.7 input/output for general use 48 P1.3 input/output for general use
22 V
SSA
analog ground 49 SCL I2C-bus Serial Clock input from application
23 CVBS0
Composite Video Baseband Signal (CVBS) input;
a positive-going 1 V (peak-to-peak) input is
required; connected via a 100 nF capacitor
50 SDA I2C-bus Serial Data input/output (application)
24 CVBS1
Composite Video Baseband Signal (CVBS) input;
a positive-going 1 V (peak-to-peak) input is
required; connected via a 100 nF capacitor
49 SCL I2C-bus Serial Clock input from application
25 SYNC_FILTER
sync-pulse-filter input for CVBS; this pin should
be connected to V
SSA
via a 100 nF capacitor
50 SDA I2C-bus Serial Data input/output (application)
26 IREF
reference current input for analog circuits; for
correct operation a 24 kO resistor should be
connected to V
SSA
51 P1.4 input/output for general use
27 FRAME
Frame de-interlace output synchronized with the
VSYNC pulse to produce a non-interlaced display
by adjustment of the vertical deflection circuits
52 P1.5 input/output for general use
-34-
IC601(SAA5264) (For TELETEXT Board)