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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. (c) 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 42-pin PDIP 42-pin Shrink PDIP 40-pin PDIP 44-pin SOP 44-pin PLCC Part Number WT6148/ WT6160-N42 WT6148/ WT6160-K42 WT6148/ WT6160-N40 WT6148/ WT6160-S44 WT6148/ WT6160-L44
Weltrend Semiconductor, Inc.
Page 2
WT6148/WT6160v1.02
Digital Monitor Controller
PIN ASSIGNMENT AND PACKAGE TYPE
42-pin SPDIP
1 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 PC3/AD3 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 42 41 40 39 38 37 36 35 34 33 VIN HIN PWM3 PD5/PWM4 PD4/PWM5 PD3/PWM6 PD2/PWM7 PD1/HOUT PD0/VOUT PA7/PWM13/CLAMP PA6/PWM12 PA5/PWM11 PA4/PWM10 PA3/PWM9 PA2/PWM8 PA1/SCL1 PA0/SDA1 PC0/AD0 PC1/AD1 PC2/AD2 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 PC3/AD3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 VIN HIN PWM3 PD5/PWM4 PD4/PWM5 PD3/PWM6 PD2/PWM7 PD1/HOUT PD0/VOUT PA7/PWM13/CLAMP PA6/PWM12 PA5/PWM11 PA4/PWM10 PA3/PWM9 PA2/PWM8 PA1/SCL1 PA0/SDA1 PC0/AD0 PC1/AD1 PC2/AD2
40-pin PDIP
WT6148-K42 WT6160-K42
32 31 30 29 28 27 26 25 24 23 22
WT6148-N40 WT6160-N40
31 30 29 28 27 26 25 24 23 22 21
RESET/3V3
44-pin SOP
1 PWM2 PWM1 PWM0 RESET/3V3 VDD 2 3 4 5 6 7 GND OSCO OSCI PB5/SDA2 PB4/SCL2 PB3/PAT PB2 PB1/HFI PB0/HFO IRQ PC7/SOGIN PC6 PC5 PC4 PC3/AD3 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 PD3/PWM6 PD2/PWM7 PD1/HOUT PD0/VOUT PA7/PWM13/CLAMP PA6/PWM12 PA5/PWM11 PA4/PWM10 PA3/PWM9 PA2/PWM8 VIN HIN 6 PWM3 PD5/PWM4 PD4/PWM5 VDD GND OSCO OSCI PB5/SDA2 PB4/SCL2 PB3/PAT PB2 PB1/HFI PB0/HFO IRQ 7 8 9 10 11 12 13 14 15 16 17 18
44-pin PLCC
PWM0 PWM1 PWM2 PWM3 40 39 38 37 36 35 HIN 41 VIN 44 43 42 1
5
4
3
2
PD5/PWM4 PD4/PWM5 PD3/PWM6 PD2/PWM7 PD1/HOUT PD0/VOUT PA7/PWM13/CLAMP PA6/PWM12 PA5/PWM11 PA4/PWM10 PA3/PWM9
WT6148-S44 WT6160-S44
WT6148-L44 WT6160-L44
34 33 32 31 30 29
33 32 31 30 29 28 27 26 25 24 23
19
20
21
22
23
24
25
26
27 PA1/SCL1
PC6
PC5
PC4
PC3/AD3
PC2/AD2
PC1/AD1
PC0/AD0
PA0/SDA1
PA1/SCL1 PA0/SDA1 PC0/AD0 PC1/AD1 PC2/AD2
Weltrend Semiconductor, Inc.
Page 3
PC7/SOGIN
PA2/PWM8
28
WT6148/WT6160v1.02
Digital Monitor Controller PIN DESCRIPTION
Pin No. L44 S44 42 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Pin Name 40 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 6 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 NC PWM2 PWM1 PWM0 /RESET NC VDD NC GND OSCO OSCI PB5/ SDA2 PB4/ SCL2 PB3/PAT PB2 PB1/HFI PB0/HFO /IRQ PC7/SOGIN PC6 PC5 PC4 PC3/AD3 PC2/AD2 PC1/AD1 PC0/AD0 PA0/SDA1 PA1/SCL1 PA2/PWM8 PA3/PWM9 PA4/PWM10 PA5/PWM11 PA6/PWM12 PA7/PWM13/ CLAMP PD0/VOUT PD1/HOUT PD2/PWM7 PD3/PWM6 NC PD4/PWM5 PD5/PWM4 PWM3 HIN VIN O O O I No Connection. PWM2 output (10V open-drain). PWM1 output (5V open-drain). PWM0 output (5V open-drain). Reset input No Connection. +5V power supply. No Connection. Ground. 12MHz oscillator output. 12MHz oscillator input. Port B5 or I2C interface data line. Port B4 or I2C interface clock line. Port B3 or test pattern output Port B2. Port B1 or half frequency divider input. Port B0 or half frequency divider output. Interrupt request input. A low level on this can generate interrupt. Port C7 or Sync on Green input. Port C6. Port C5. Port C4. Port C3 or ADC input 3. Port C2 or ADC input 2. Port C1 or ADC input 1. Port C0 or ADC input 0. Port A0 or DDC interface SDA pin. Port A1 or DDC interface SCL pin. Port A2 or PWM8 output. Port A3 or PWM9 output. Port A4 or PWM10 output. Port A5 or PWM11 output. Port A6 or PWM12 output. Port A7 or PWM13 output or clamp pulse output. I/O Description
I/O I I/O I/O I/O I/O I/O I/O I I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O
Port D0 or Vsync output. Port D1 or Hsync output. Port D2 or PWM7 output. Port D3 or PWM6 output. No Connection. I/O Port D4 or PWM5 output. I/O Port D5 or PWM4 output. I/O PWM3 output (10V open-drain). I Hsync Input. I Vsync input.
Weltrend Semiconductor, Inc.
Page 4
WT6148/WT6160v1.02
Digital Monitor Controller
43 44 44 42 NC NC No Connection. 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.
Page 5

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