S912XHZ512F1VAG Datasheet, PDF (45/978 Pages) Freescale Semiconductor, Inc – Covers MC9S12XHZ384, MC9S12XHZ256

Chapter 1 MC9S12XHZ Family Device Overview
1.2.3.53 PV[7:4] / M3C1(SIN)P, M3C1(SIN)M, M3C0(COS)P, M3C0(COS)M — Port V
I/O Pins [7:4]
PV7–PV4 are general-purpose input or output pins. They can be configured as high current PWM output
pins which can be used for motor drive or to measure the back EMF to calibrate the pointer reset position.
These pins interface to the coils of motor 3.
1.2.3.54 PV[3:0] / M2C1(SIN)P, M2C1(SIN)M, M2C0(COS)P, M2C0(COS)M — Port V
I/O Pins [3:0]
PV3–PV0 are general-purpose input or output pins. They can be configured as high current PWM output
pins which can be used for motor drive or to measure the back EMF to calibrate the pointer reset position.
These pins interface to the coils of motor 2.
1.2.3.55 PW[7:4] / M5C1(SIN)P, M5C1(SIN)M, M5C0(COS)P, M5C0(COS)M — Port
W I/O Pins [7:4]
PW7–PW4 are general-purpose input or output pins. They can be configured as high current PWM output
pins which can be used for motor drive or to measure the back EMF to calibrate the pointer reset position.
These pins interface to the coils of motor 5.
1.2.3.56 PW[3:0] / M4C1(SIN)P, M4C1(SIN)M, M4C0(COS)P, M4C0(COS)M — Port
W I/O Pins [3:0]
PW3–PW0 are general-purpose input or output pins. They can be configured as high current PWM output
pins which can be used for motor drive or to measure the back EMF to calibrate the pointer reset position.
These pins interface to the coils of motor 4.
1.2.4 Power Supply Pins
Power and ground pins are described below.
NOTE
All V_SS pins must be connected together in the application.
1.2.4.1 V_DDR — External Power Pin
V_DDR is the power supply pin for the internal voltage regulator.
1.2.4.2 V_DDX1, V_DDX2, V_SSX1, V_SSX2 — External Power and Ground Pins
External power and ground for I/O drivers. Because fast signal transitions place high, short-duration
current demands on the power supply, use bypass capacitors with high-frequency characteristics and place
them as close to the MCU as possible. Bypass requirements depend on how heavily the MCU pins are
loaded.
V_DDX1 and V_DDX2 as well as V_SSX1 and V_SSX2 are not internally connected.
MC9S12XHZ512 Data Sheet, Rev. 1.06
Freescale Semiconductor
45