Reference guide

Modes of Operation
Cluster (Dashboard) Using S12HZ256 as a Single-Chip Solution Designer Reference Manual, Rev. 0
Freescale Semiconductor 11
Four stepper stall detectors (SSD):
• Full step control during return to zero
• Voltage selector and integrator/sigma delta converter circuit
• 16-bit accumulator register
• 16-bit modulus down counter
112-Pin LQFP and 80-Pin QFP packages:
• 85 I/O lines with 5-V input and drive capability
• 5-V A/D converter inputs
• Eight key wake up interrupts with digital filtering and programmable rising/falling edge trigger
• Operating speed:
• Operation at 50 MHz equivalent to 25 MHz bus speed
Development support:
• Single-wire background debug™ mode (BDM)
• Debugger and on-chip hardware breakpoints
2.3 Modes of Operation
2.3.1 User Modes
User modes include:
• Normal and emulation operating modes
– Normal single-chip mode
– Normal expanded wide mode
– Normal expanded narrow mode
– Emulation expanded wide mode
– Emulation expanded narrow mode
• Special operating modes
– Special single-chip mode with active background debug mode
– Special test mode (Freescale use only)
– Special peripheral mode (Freescale use only)
2.3.2 Low-Power Modes
Low-power modes include:
• Stop mode
• Pseudo stop mode
• Wait mode