S912XHY128F0VLM Datasheet, PDF (667/802 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

Chapter 20
Motor Controller (MC10B8CV1)
Version
Number
Revision
Date
6-OCT-2009
Table 20-1. Revision History
Author
Description of Changes
Table 20-12
- fixed 2nd content row : MnCyP := PWM
- fixed 4th content row : MnCyP := 0
20.1 Introduction
The block MC10B8C is a PWM motor controller suitable to drive instruments in a cluster configuration
or any other loads requiring a PWM signal. The motor controller has eight PWM channels associated with
two pins each (16 pins in total).
20.1.1 Features
The MC10B8C includes the following features:
• 10/11-bit PWM counter
• 11-bit resolution with selectable PWM dithering function
• 7-bit resolution mode (fast mode): duty cycle can be changed by accessing only 1 byte/output
• Left, right, or center aligned PWM
• Output slew rate control
• This module is suited for, but not limited to, driving small stepper and air core motors used in
instrumentation applications. This module can be used for other motor control or PWM
applications that match the frequency, resolution, and output drive capabilities of the module.
20.1.2 Modes of Operation
20.1.2.1 Functional Modes
20.1.2.1.1 PWM Resolution
The motor controller can be configured to either 11- or 7-bits resolution mode by clearing or setting the
FAST bit. This bit influences all PWM channels. For details, please refer to Section 20.3.2.5, “Motor
Controller Duty Cycle Registers”.
MC9S12XHY-Family Reference Manual, Rev. 1.01
Freescale Semiconductor
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