
WT6014
Digital Monitor Controller
Ver. 1.21 Jul-31-1998
Weltrend Semiconductor, Inc.
1
GENERAL DESCRIPTION
The WT6014 is a member of WT60XX microcontroller family. It is specially designed for digital
controlled multi-sync monitor. It contains 8-bit CPU, 4K bytes ROM, 128 bytes RAM, 14 PWMs,
parallel I/O, SYNC processor, timer, DDC interface (slave mode I
2
C interface with DDC1), and
watch-dog timer.
FEATURES
* 8-bit 6502 compatible CPU, 4MHz operating frequency
* 4096 bytes ROM, 128 bytes SRAM
* 8MHz crystal oscillator
* 14 channels 8-bit/62.5kHz PWM outputs (8 open drain outputs & 6 CMOS outputs)
* Sync signal processor with sync separation, frequency calculation, H/V polarity detection control
* DDC interface supports VESA DDC1/DDC2B standard
* Watch-dog timer (0.524 second)
* Maximum 22 programmable I/O pins
* One 8-bit programmable timer
* One external interrupt request
* Built-in low V
DD
voltage reset
* Single +5V power supply
PIN ASSIGNMENT
*
I
2
C
is a trademark of Philips Corporation.
*
DDC
is a trademark of Video Electronics Standard Association (VESA).
41
42
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DA0
DA1
DA2
DA3
DA4
DA5
DA6
DA7
GND
HSYNC
OSCI
OSCO
PA0/DA8
PA1/DA9
PA2/DA10
PA3/DA11
PA4/DA12
PA5/DA13
PA6/VSO
PA7/HSO
PB0
PB1
PB2
PB3
PB4
PB5
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
SCL
SDA
VDD
VSYNC
IRQ
RESET
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DA0
DA1
DA2
DA3
DA4
DA5
DA6
DA7
GND
HSYNC
OSCI
OSCO
PA0/DA8
PA1/DA9
PA2/DA10
PA3/DA11
PA4/DA12
PA5/DA13
PA6/VSO
PA7/HSO
PB0
PB1
PB2
PB3
PB4
PB5
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
SCL
SDA
VDD
VSYNC
IRQ
RESET
42-Pin SDIP
40-Pin PDIP