WT6018
WT6018 is Digital Monitor Controller manufactured by Weltrend Semiconductor.
DESCRIPTION
The WT6018 is a member of WT60XX microcontroller family. It is specially designed for digital controlled multi-sync monitor. It contains 8-bit CPU, 8K bytes ROM, 288 bytes RAM, 14 PWMs, parallel I/O, SYNC processor, timer, DDC interface (slave mode I2C interface with DDC1), two 4-bit A/D convertors and watch-dog timer.
FEATURES
- 8-bit 6502 patible CPU, 4MHz operating frequency
- 8192 bytes ROM, 288 bytes SRAM
- 8MHz crystal oscillator
- 14 channels 8-bit/62.5k Hz PWM outputs (8 open drain outputs & 6 CMOS outputs)
- Sync signal processor with H+V separation, frequency calculation, H/V polarity detection/control
- Three free-running sync signal outputs for burn-in test (64k Hz/62.5Hz, 48k Hz/75Hz, 31k Hz/60Hz)
- Self-test pattern generator generates cross hatch picture
- Provide half frequency input and output
- DDC interface supports VESA DDC1/DDC2B standard
- Watch-dog timer (0.524 second)
- Maximum 25 programmable I/O pins
- One 8-bit programmable timer
- Two 4-bit A/D converter
- One external interrupt request
- Built-in low VDD voltage reset
- +5V power supply
PIN ASSIGNMENT
40-Pin PDIP
42-Pin SDIP
DA2 1 DA1 2 DA0 3 RESET 4 VDD 5 GND 6 OSCO 7 OSCI 8 PB5 9 PB4 10 PB3/PAT 11 PB2 12 PB1/HLFI 13 PB0/HLFO 14 PB6/IRQ 15 PC7 16 PC6 17 PC5 18 PC4 19 PC3 20
40 VSYNC
DA2 1
39 HSYNC
DA1 2
38 DA3
DA0 3
37 DA4
RESET 4
36 DA5
VDD 5
35 DA6
34 DA7
GND 7
33 PA7/HSO
OSCO 8
32...
