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偉詮電子股份有限公司
Weltrend Semiconductor, Inc.
WT6148
Digital Monitor Controller
(ROM Type)
Preliminary Data Sheet
REV. 1.00
Nov. 22, 1999
The information in this document is subject to change without notice.
Weltrend Semiconductor, Inc. All Rights Reserved.
新竹市科學工業園區工業東九路 24 號2 樓
2F, No. 24, Industry E. 9th RD., Science-Based Industrial Park, Hsin-Chu, Taiwan
TEL:886-3-5780241 FAX:886-3-5794278.5770419
Email:[email protected]
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WT6148
Digital Monitor Controller
GENERAL DESCRIPTION
The WT6148 is a microcontroller for digital controlled monitor. It contains an 8-bit CPU, 60K bytes ROM,
1056 bytes RAM, 14 PWMs, parallel I/Os, SYNC signal processor, timer, DDC1/2B interface, master/slave
I2C interface, 6-bit A/D converter and watch-dog timer.
FEATURES
• 8-bit 6502 compatible CPU with 6MHz operating frequency
• 60K bytes ROM, 1024 bytes SRAM+32 bytes bit addressible SRAM
• 12MHz crystal oscillator
• 14 channels 8-bit PWM outputs
• Sync signal processor with H+V separation, H/V frequency counter, H/V polarity detection/control and
clamp pulse output
• Six free-running sync signal outputs (Horizontal frequency up to 106KHz)
• Self-test pattern
• DDC1/2B supported
• Fast mode master/slave I2C interface (up to 400KHz)
• Watch-dog timer
• Maximum 28 programmable I/O pins
• One 8-bit programmable timer
• 6-bit A/D converter with 4 selectable inputs
• One external interrupt request input
• Low VDD reset
ORDERING INFORMATION
Package Type Part Number
42-pin PDIP WT6148-N42
42-pin Shrink PDIP WT6148-K42
40-pin PDIP WT6148-N40
44-pin SOP WT6148-S44
Weltrend Semiconductor, Inc.
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PIN ASSIGNMENT AND PACKAGE TYPE
DIP 40-pin
PWM2
PWM1
PWM0
RESET
VDD
GND
OSCO
OSCI
PB5/SDA2
PB4/SCL2
PB3/PAT
PB2
PB1/HFI
PB0/HFO
IRQ
PC7/SOGIN
PC6
PC5
PC4
1
2
3
4
5
6
7
8
WT6148 WT6148
9
10
11
12
13
14
15
16
17
18
19
40
VIN
39
HIN
38
PWM3
37
PD5/PWM4
36
PD4/PWM5
35
PD3/PWM6
34
PD2/PWM7
33
PD1/HOUT
32
PD0/VOUT
31
PA7/PWM13/CLAMP
30
PA6/PWM12
29
PA5/PWM11
28
PA4/PWM10
27
PA3/PWM9
26
PA2/PWM8
25
PA1/SCL1
24
PA0/SDA1
23
PC0/AD0
22
PC1/AD1
2120
PC2/AD2PC3/AD3
PWM2
PWM1
PWM0
RESET
OSCO
PB5/SDA2
PB4/SCL2
PB3/PAT
PB1/HFI
PB0/HFO
PC7/SOGIN
Digital Monitor Controller
Shrink DIP 42-pin
1
2
3
4
5
6
VDD
7
GND
8
9
OSCI
10
11
12
13
PB2
14
15
16
IRQ
17
18
PC6
19
PC5
20
PC4
WT6148
42
41
VIN
40
HIN
39
PWM3
38
PD5/PWM4
37
PD4/PWM5
36
PD3/PWM6
35
PD2/PWM7
34
PD1/HOUT
33
PD0/VOUT
32
PA7/PWM13/CLAMP
31
PA6/PWM12
30
PA5/PWM11
29
PA4/PWM10
28
PA3/PWM9
27
PA2/PWM8
26
PA1/SCL1
25
PA0/SDA1
24
PC0/AD0
23
PC1/AD1
2221
PC2/AD2PC3/AD3
Weltrend Semiconductor, Inc.
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WT6148
Digital Monitor Controller
PIN DESCRIPTION
Pin No.
42 40
1 - NC No connection.
2 1 PWM2 O PWM2 output (10V open-drain).
3 2 PWM1 O PWM1 output (5V open-drain).
4 3 PWM0 O PWM0 output (5V open-drain).
5 4 /RESET I Reset input.
6 5 VDD +5V power supply.
7 6 GND Ground.
8 7 OSCO I/O 12MHz oscillator output.
9 8 OSCI I 12MHz oscillator input.
10 9 PB5/ SDA2 I/O Port B5 or I2C interface data line.
11 10 PB4/ SCL2 I/O Port B4 or I2C interface clock line.
12 11 PB3/PAT I/O Port B3 or test pattern output
13 12 PB2 I/O Port B2.
14 13 PB1/HFI I/O Port B1 or half frequency divider input.
15 14 PB0/HFO I/O Port B0 or half frequency divider output.
16 15 /IRQ I Interrupt request input, A low level on this can generate interrupt.
17 16 PC7/SOGIN I/O Port C7 or Sync on Green input.
18 17 PC6 I/O Port C6.
19 18 PC5 I/O Port C5.
20 19 PC4 I/O Port C4.
21 20 PC3/AD3 I/O Port C3 or ADC input 3.
22 21 PC2/AD2 I/O Port C2 or ADC input 2.
23 22 PC1/AD1 I/O Port C1 or ADC input 1.
24 23 PC0/AD0 I/O Port C0 or ADC input 0.
25 24 PA0/SDA1 I/O Port A0 or DDC interface SDA pin.
26 25 PA1/SCL1 I/O Port A1 or DDC interface SCL pin.
27 26 PA2/PWM8 I/O Port A2 or PWM8 output.
28 27 PA3/PWM9 I/O Port A3 or PWM9 output.
29 28 PA4/PWM10 I/O Port A4 or PWM10 output.
30 29 PA5/PWM11 I/O Port A5 or PWM11 output.
31 30 PA6/PWM12 I/O Port A6 or PWM12 output.
32 31 PA7/PWM13/
33 32 PD0/VOUT I/O Port D0 or Vsync output.
34 33 PD1/HOUT I/O Port D1 or Hsync output.
35 34 PD2/PWM7 I/O Port D2 or PWM7 output.
36 35 PD3/PWM6 I/O Port D3 or PWM6 output.
37 36 PD4/PWM5 I/O Port D4 or PWM5 output.
38 37 PD5/PWM4 I/O Port D5 or PWM4 output.
39 38 PWM3 I/O PWM3 output (10V open-drain).
40 39 HIN I Hsync Input.
41 40 VIN I Vsync input.
42 - NC No connection.
Pin Name I/O Description
I/O Port A7 or PWM13 output or clamp pulse output.
CLAMP
Weltrend Semiconductor, Inc.
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