Service manual

8258I N/B Maintenance

 PWM

• Support four PWM Channels

• PWM 0 and 1 are 8-bit and programmable frequency from 62 Hz to 7.5 KHz

• PWM 2 and 3 are 16-bit and programmable frequency from 6 Hz to 3 MHz

• Support four timer signal with three pre-scalars

• Timer 1 and 2 Shard the Same Pre-scalar and are Free-Running Only

• Timer X and Y Have Individual Pre-scalar and Support up to Four Control Modes, Free Running, Pulse

Output, Event Counter and Pulse Width Measurement

• Firmware programmable optional with 10-bit or 8-bit resolution, support eight channels

 A/D Converter

• 8-bit Resolution, support two channels

 D/A Converter

• Support two fan tachometer inputs

 Fan Tachometer

MiTac Secret

Confidential Document