mc9s12hz256v2 Freescale Semiconductor, Inc, mc9s12hz256v2 Datasheet - Page 306

• Manufacturer Part Number: mc9s12hz256v2
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 10 Stepper Stall Detector (SSDV1)
10.4.3
The SSD block can be configured for lower MCU power consumption in three different ways.
10.4.4
Figure 10-15
second stepper motor, the SMS bit must be toggled during the SSD initialization.
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Stop mode powers down the sigma-delta converter and halts clock to the modulus counter. Exit
from Stop enables the sigma-delta converter and the clock to the modulus counter but due to the
converter recovery time, the integration result should be ignored.
Wait mode with SSDWAI bit set powers down the sigma-delta converter and halts the clock to the
modulus counter. Exit from Wait enables the sigma-delta converter and clock to the modulus
counter but due to the converter recovery time, the integration result should be ignored.
Clearing SDCPU bit powers down the sigma-delta converter.
Operation in Low Power Modes
Stall Detection Flow
shows a flowchart and software setup for stall detection of a stepper motor. To control a
MC9S12HZ256 Data Sheet, Rev. 2.05
Freescale Semiconductor