2. MCU
Monitor MCU Specification
Frequency Specification
H-freq. : 29.5K – 70KHz
V-freq. : 43 – 160Hz
Judge polarity only when frequency is 31.5 KHz and 37.8 KHz
Support composite sync detection
System Architecture
1. MCU – Weltrend WT6016, 16K bytes ROM size
2. EEPROM – 24C04 series, 4K bit, with ID code for identify initialization.
3. OSD – Myson MTV016N-12
Input
1. Sync input – 2 pins for H-sync & V-sync frequency inverted input.
2. Key input – 2 pins for A/D key input (SELECT. UP, DOWN and RECALL).
3. Burn-in ID input – 1 pins for Burn-in ID input.
4. Reset input – low pulse for reset MCU
5. Crystal input – 2 pins using 8MHz crystal.
Output – MCU digital pin
1.Degauss – Active high pulse for 2.5 sec when in degauss. MCU will activate degauss while
power on.
2.CS output – 3 pins (CS2, CS1, CS0) for CS control
H-sync CS2 CS1 CS0
H-sync
<
33.25KHz 0 0 0
33.25KHz
<
H-sync
<
36.50KHz 0 1 0
36.50KHz
<
H-sync
<
40.50KHz 0 1 1
40.50KHz
<
H-sync
<
45.10KHz 1 0 0
45.10KHz
<
H-sync
<
51.60KHz 1 0 1
51.60KHz
<
H-sync
<
55.10KHz 1 1 0
55.10KHz
<
H-sync
<
62.15KHz 1 1 0
62.15KHz
<
H-sync 1 1 1
Mode change 0 0 0
43
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