[Weltrend]

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