MC9S12HZ256 Datasheet, PDF (45/692 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Chapter 1 MC9S12HZ256 Device Overview
1.5.7.5 V_DDM1, V_DDM2, V_DDM3 — Power Supply Pins for Motor 0 to 3
V_DDM1, V_DDM2 and V_DDM3 are the supply pins for the ports U and V. V_DDM1, V_DDM2 and V_DDM3 are
internally connected.
1.5.7.6 V_SSM1, V_SSM2, V_SSM3 — Ground Pins for Motor 0 to 3
V_SSM1, V_SSM2 and V_SSM3 are the ground pins for the ports U and V. V_SSM1, V_SSM2 and V_SSM3 are
internally connected.
1.5.7.7 V_LCD — Power Supply Reference Pin for LCD driver
V_LCD is the voltage reference pin for the LCD driver. Adjusting the voltage on this pin will change the
display contrast.
1.5.7.8 V_RH, V_RL — ATD Reference Voltage Input Pins
V_RH and V_RL are the voltage reference pins for the analog-to-digital converter.
1.5.7.9 V_DDPLL, V_SSPLL — Power Supply Pins for PLL
V_DDPLL and V_SSPLL are the PLL supply pins and serve as connection points for external loop filter
components.
NOTE
No load allowed except for bypass capacitors.
MC9S12HZ256 Data Sheet, Rev. 2.04
Freescale Semiconductor
45