## MMPM/2 Device Driver Reference

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### Introduction

The high-resolution timer package includes the following files:

TIMER0.SYS the high-resolution timer driver

CLOCK01.SYS a modified CLOCK01.SYS for high-resolution timer support

CLOCK02.SYS modified CLOCK02.SYS for high-resolution timer support

TMR0_IDC.H the header file used to communicate with the high-resolution timer from another PDD

TMR0_IOC.H the header file for IOCtl interface to the high-resolution timer

TIMER0.DDP the DDINSTAL installation script