Weltrend Semiconductor, Inc.

2F, No. 24, Industry E. 9

RD., Science-Based Industrial Park, Hsin-Chu, Taiwan

TEL:886-3-5780241 FAX:886-3-5794278.5770419

Email:support@weltrend.com.tw

WT62P2

Digital Monitor Controller with USB Function

(Flash Memory Type)

Preliminary Data Sheet

REV. 1.04

Sep. 20, 2001

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

WT62P2

v1.04

USB Monitor Controller

Weltrend Semiconductor, Inc.

Page 2

GENERAL DESCRIPTION

The WT62P2 is a microcontroller for digital controlled monitor with Universal Serial Bus (USB) interface. It

contains an 8-bit CPU, 60K bytes Flash memory, 1024 bytes RAM, 256 bits bit-addressable RAM, 14

PWMs, parallel I/Os, SYNC signal processor, timer, DDC1/2B interface, master/slave I

C interface, low

speed USB device module, 6-bit A/D converter and watch-dog timer.

FEATURES

8-bit 6502 compatible CPU with 6MHz operating frequency

60K bytes flash memory, 1024 bytes SRAM, 256 bits 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 I

C interface (up to 400KHz)

Embedded USB function with endpoint 0 and endpoint 1

Built-in 3.3V regulator for USB transceiver

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 V

reset

ORDERING INFORMATION

Package Type

Part Number

42-pin PDIP

WT62P2-N42

42-pin Shrink PDIP

WT62P2-K42

40-pin PDIP

WT62P2-N40

44-pin SOP

WT62P2-S44

44-pin PLCC

WT62P2-L44

WT62P2

v1.04

USB Monitor Controller

Weltrend Semiconductor, Inc.

Page 3

PIN ASSIGNMENT AND PACKAGE TYPE

39
38
37
36
35
34
33
32
31
30
29

D+

D-

GND

HIN

IRQ

OSCI

OSCO

PA0/SDA1

PA1/SCL1

PA2/PWM8

PA3/PWM9

PA4/PWM10

PA5/PWM11

PA6/PWM12

PA7/PWM13/CLAMP

PB0/HFO

PB1/HFI

PB2

PB3/PAT

PB4/SCL2

PB5/SDA2

PC0/AD0

PC1/AD1

PC2/AD2

PC3/AD3

PC4

PC5

PC6

PC7/SOGIN

PD0/VOUT

PD1/HOUT

PD2/PWM7

PD3/PWM6

PD4/PWM5

PD5/PWM4

PWM0

PWM1

PWM2

PWM3

RESET/3V3

VDD

VIN

44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23

D+

D-

GND

HIN

IRQ

OSCI

OSCO

PA0/SDA1

PA1/SCL1

PA2/PWM8

PA3/PWM9

PA4/PWM10

PA5/PWM11

PA6/PWM12

PA7/PWM13/CLAMP

PB0/HFO

PB1/HFI

PB2

PB3/PAT

PB4/SCL2

PB5/SDA2

PC0/AD0
PC1/AD1
PC2/AD2

PC3/AD3

PC4

PC5

PC6

PC7/SOGIN

PD0/VOUT

PD1/HOUT

PD2/PWM7

PD3/PWM6

PD4/PWM5

PD5/PWM4

PWM0

PWM1

PWM2

PWM3

RESET/3V3

VDD

VIN

42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22

D+

D-

GND

HIN

IRQ

OSCI

OSCO

PA0/SDA1

PA1/SCL1

PA2/PWM8

PA3/PWM9

PA4/PWM10

PA5/PWM11

PA6/PWM12

PA7/PWM13/CLAMP

PB0/HFO

PB1/HFI

PB2

PB3/PAT

PB4/SCL2

PB5/SDA2

PC0/AD0
PC1/AD1
PC2/AD2

PC3/AD3

PC4

PC5

PC6

PC7/SOGIN

PD0/VOUT

PD1/HOUT

PD2/PWM7

PD3/PWM6

PD4/PWM5

PD5/PWM4

PWM0

PWM1

PWM2

PWM3

RESET/3V3

VDD

VIN

40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22

GND

HIN

IRQ

OSCI

OSCO

PA0/SDA1

PA1/SCL1

PA2/PWM8

PA3/PWM9

PA4/PWM10

PA5/PWM11

PA6/PWM12

PA7/PWM13/CLAMP

PB0/HFO

PB1/HFI

PB2

PB3/PAT

PB4/SCL2

PB5/SDA2

PC0/AD0
PC1/AD1
PC2/AD2

PC3/AD3

PC4

PC5

PC6

PC7/SOGIN

PD0/VOUT

PD1/HOUT

PD2/PWM7

PD3/PWM6

PD4/PWM5

PD5/PWM4

PWM0

PWM1

PWM2

PWM3

RESET/3V3

VDD

VIN

WT62P2-L44

44-pin PLCC

WT62P2-S44

44-pin SOP

WT62P2-N40

WT62P2-K42

WT62P2-N42

40-pin PDIP

42-pin PDIP

42-pin SPDIP

WT62P2

v1.04

USB Monitor Controller

Weltrend Semiconductor, Inc.

Page 4

PIN DESCRIPTION

Pin No.

Pin Name I/O

Description

L44 S44 42 40

- D+

I/O USB D+ signal.

1 PWM2

O PWM2 output (10V open-drain).

2 PWM1

O PWM1 output (5V open-drain).

3 PWM0

O PWM0 output (5V open-drain).

4 /RESET/3V3

I Reset input or +3.3V regulator output for USB transceiver

power supply.

- NC

No Connection.

5 VDD

+5V power supply.

- NC

No Connection.

6 GND

Ground.

7 OSCO

I/O 12MHz oscillator output.

10 10

8 OSCI

I 12MHz oscillator input.

11 11 10

9 PB5/ SDA2

I/O Port B5 or I

C interface data line.

12 12 11 10 PB4/ SCL2

I/O Port B4 or I

C 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 Interrupt request input. A low level on this can generate

interrupt.

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

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

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.

- 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.

WT62P2

v1.04

USB Monitor Controller

Weltrend Semiconductor, Inc.

Page 5

42 43 41 40 VIN

I Vsync input.

- NC

No Connection.

44 44 42

- D-

I/O USB D- signal.

FUNCTIONAL DESCRIPTION

CPU

8-bit 6502 compatible CPU with 16-bit address bus and 8-bit data bus operates at 6MHz. 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 256 bits bit-addressable SRAM are from $0500H to $05FFH

Flash Memory

60K bytes flash memory for program. 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.

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