Datasheet WT6148, WT6160 Datasheet (Weltrend)

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Weltrend Semiconductor, Inc.

WT6148/WT6160

Digital Monitor Controller

(ROM Type)

Preliminary Data Sheet

REV. 1.02

Sep. 4, 02

The information in this document is subject to change without notice.



Weltrend Semiconductor, Inc. All Rights Reserved.

WT6148/WT6160v1.02

Digital Monitor Controller

GENERAL DESCRIPTION

The WT6148/ WT6160 is a microcontroller for digital controlled monitor. It contains an 8-bit CPU, 48K
/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

• WT6148 : 48K bytes ROM,

WT6160 : 60K bytes ROM,
,1024 bytes SRAM+32 bytes bit addressable 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 85Hz@1600x1200)

• Self-test pattern

• DDC1/2B module for EDID1.3, EDID2.0 and Enhance EDID

• 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/ WT6160-N42

42-pin Shrink PDIP WT6148/ WT6160-K42

40-pin PDIP WT6148/ WT6160-N40

44-pin SOP WT6148/ WT6160-S44

44-pin PLCC WT6148/ WT6160-L44

Weltrend Semiconductor, Inc.

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PIN ASSIGNMENT AND PACKAGE TYPE

42-pin SPDIP

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

PWM2
PWM1
PWM0

RESET/3V3

OSCO

PB5/SDA2
PB4/SCL2

PB3/PAT

PB1/HFI

PB0/HFO

PC7/SOGIN

PWM2
PWM1
PWM0

RESET/3V3

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
9
10
11
12
13
14
15
16
17
18
19
20

WT6148-K42
WT6160-K42

WT6148/WT6160v1.02

Digital Monitor Controller

40-pin PDIP

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

21

PC2/AD2PC3/AD3

VDD
GND

OSCI

PB2

IRQ

PC6
PC5
PC4

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

WT6148-N40
WT6160-N40

RESET/3V3

PB5/SDA2
PB4/SCL2

PB3/PAT

PB1/HFI

PB0/HFO

PC7/SOGIN

PWM2
PWM1
PWM0

VDD

GND

OSCO

OSCI

PB2

IRQ

PC6
PC5
PC4

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

44-pin SOP

WT6148-S44
WT6160-S44

44
43

VIN

42

HIN

41

PWM3

40

PD5/PWM4

39

PD4/PWM5
38
37

PD3/PWM6
36

PD2/PWM7
35

PD1/HOUT
34

PD0/VOUT
33

PA7/PWM13/CLAMP
32

PA6/PWM12
31

PA5/PWM11
30

PA4/PWM10
29

PA3/PWM9
28

PA2/PWM8
27

PA1/SCL1
26

PA0/SDA1
25

PC0/AD0
24

PC1/AD1
2322

PC2/AD2PC3/AD3

VDD

OSCO

OSCI
PB5/SDA2
PB4/SCL2

PB3/PAT

PB2

PB1/HFI

PB0/HFO

IRQ

RESET/3V3

65432

7
8GND
9
10
11
12
13
14
15
16
17

19

18

PC6

PC7/SOGIN

44-pin PLCC

PWM0

PWM1

PWM2

1

WT6148-L44
WT6160-L44

23

22

21

20

PC4

PC5

PC2/AD2

PC3/AD3

HIN

VIN

4443424140

27

26

25

24

PC0/AD0

PC1/AD1

PA0/SDA1

PA1/SCL1

PWM3

39

PD5/PWM4

38

PD4/PWM5

37

PD3/PWM6

36

PD2/PWM7

35

PD1/HOUT

34

PD0/VOUT

33

PA7/PWM13/CLAMP

32

PA6/PWM12

31

PA5/PWM11

30

PA4/PWM10

29

PA3/PWM9

28

PA2/PWM8

Weltrend Semiconductor, Inc.

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Interrupt request input. A low level on this can generate

PIN DESCRIPTION

Pin No. Pin Name I/O Description

L44 S44 42 40

1 1 1 - NC No Connection.
2 2 2 1 PWM2 O PWM2 output (10V open-drain).
3 3 3 2 PWM1 O PWM1 output (5V open-drain).
4 4 4 3 PWM0 O PWM0 output (5V open-drain).
5 5 5 4 /RESET I Reset input
6 - - - NC No Connection.
7 6 6 5 VDD +5V power supply.

- 7 - - NC No Connection.
8 8 7 6 GND Ground.

9 9 8 7 OSCO I/O 12MHz oscillator output.
10 10 9 8 OSCI I 12MHz oscillator input.
11 11 10 9 PB5/ SDA2 I/O Port B5 or I2C interface data line.
12 12 11 10 PB4/ SCL2 I/O Port B4 or I2C interface clock line.
13 13 12 11 PB3/PAT I/O Port B3 or test pattern output
14 14 13 12 PB2 I/O Port B2.
15 15 14 13 PB1/HFI I/O Port B1 or half frequency divider input.
16 16 15 14 PB0/HFO I/O Port B0 or half frequency divider output.
17 17 16 15 /IRQ I

18 18 17 6 PC7/SOGIN I/O Port C7 or Sync on Green input.
19 19 18 17 PC6 I/O Port C6.
20 20 19 18 PC5 I/O Port C5.
21 21 20 19 PC4 I/O Port C4.
22 22 21 20 PC3/AD3 I/O Port C3 or ADC input 3.
23 23 22 21 PC2/AD2 I/O Port C2 or ADC input 2.
24 24 23 22 PC1/AD1 I/O Port C1 or ADC input 1.
25 25 24 23 PC0/AD0 I/O Port C0 or ADC input 0.
26 26 25 24 PA0/SDA1 I/O Port A0 or DDC interface SDA pin.
27 27 26 25 PA1/SCL1 I/O Port A1 or DDC interface SCL pin.
28 28 27 26 PA2/PWM8 I/O Port A2 or PWM8 output.
29 29 28 27 PA3/PWM9 I/O Port A3 or PWM9 output.
30 30 29 28 PA4/PWM10 I/O Port A4 or PWM10 output.
31 31 30 29 PA5/PWM11 I/O Port A5 or PWM11 output.
32 32 31 30 PA6/PWM12 I/O Port A6 or PWM12 output.
33 33 32 31 PA7/PWM13/

CLAMP
34 34 33 32 PD0/VOUT I/O Port D0 or Vsync output.
35 35 34 33 PD1/HOUT I/O Port D1 or Hsync output.
36 36 35 34 PD2/PWM7 I/O Port D2 or PWM7 output.
37 37 36 35 PD3/PWM6 I/O Port D3 or PWM6 output.

- 38 - - NC No Connection.
38 39 37 36 PD4/PWM5 I/O Port D4 or PWM5 output.
39 40 38 37 PD5/PWM4 I/O Port D5 or PWM4 output.
40 41 39 38 PWM3 I/O PWM3 output (10V open-drain).
41 42 40 39 HIN I Hsync Input.
42 43 41 40 VIN I Vsync input.

interrupt.

I/O Port A7 or PWM13 output or clamp pulse output.

WT6148/WT6160v1.02

Digital Monitor Controller

Weltrend Semiconductor, Inc.

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WT6148/WT6160v1.02

Digital Monitor Controller

43 - - - NC No Connection.
44 44 42 - NC No Connection.

FUNCTIONAL DESCRIPTION

CPU

8-bit 6502 compatible CPU operates at 6MHz. Address bus is 16-bit and data bus is 8-bit.
The non-maskable interrupt (/NMI) of 6502 is modified to be maskable and is defined as INT0 with higher
priority. The interrupt request (/IRQ) of 6502 is defined as INT1 with lower priority.

Please refer the 6502 reference menu for more detail.

RAM

The 1024 bytes SRAM include :
128 bytes SRAM are from $0080H to $00FFH
256 bytes SRAM are from $0100H to $01FFH
256 bytes SRAM are from $0200H to $02FFH
256 bytes SRAM are from $0300H to $03FFH
128 bytes SRAM are from $0400H to $047FH

The 32 bytes SRAM bit addressible are from $0500H to $05FFH

ROM

For WT6148, ROM address is located from $4000h to $FFFFh.
For WT6160, ROM address is located from $1000h to $FFFFh.

The following addresses are reserved for special purpose :
$FFFAh (low byte) and $FFFBh (high byte) : INT0 interrupt vector.
$FFFCh (low byte) and $FFFDh (high byte) : program reset interrupt vector.
$FFFEh (low byte) and $FFFFh (high byte) : INT1 interrupt vector.

Weltrend Semiconductor, Inc.

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