![](http://datasheet.mmic.net.cn/230000/9S12H128_datasheet_15574440/9S12H128_17.png)
Pin Assignments
16-bit Microcontroller HCS12H Family, Rev. 11.1
Freescale Semiconductor
17
PRELIMINARY
PU1
M0C0P
Function 1: Port U general purpose input or output pins.
Function 2: High current PWM output pins which can be used
for motor drive. These pins interface to the coils of motor 0.
PWM output on M0C0M results in a positive current flow
through coil 0 when M0C0P is driven to a logic high state.
Function 1: Port V general purpose input or output pins.
Function 2: High current PWM output pins which can be used
for motor drive. These pins interface to the coils of motor 3.
PWM output on M3C1M results in a positive current flow
through coil 1 when M3C1P is driven to a logic high state.
Function 1: Port V general purpose input or output pins.
Function 2: High current PWM output pins which can be used
for motor drive. These pins interface to the coils of motor 3.
PWM output on M3C0M results in a positive current flow
through coil 0 when M3C0P is driven to a logic high state.
Function 1: Port V general purpose input or output pins.
Function 2: High current PWM output pins which can be used
for motor drive. These pins interface to the coils of motor 2.
PWM output on M2C1M results in a positive current flow
through coil 1 when M2C1P is driven to a logic high state.
Function 1: Port V general purpose input or output pins.
Function 2: High current PWM output pins which can be used
for motor drive. These pins interface to the coils of motor 2.
PWM output on M2C0M results in a positive current flow
through coil 0 when M2C0P is driven to a logic high state.
Function 1: Port W general purpose input or output pins.
Function 2: High current PWM output pins which can be used
for motor drive. These pins interface to the coils of motor 5.
PWM output on M5C1M results in a positive current flow
through coil 1 when M5C1P is driven to a logic high state.
Function 1: Port W general purpose input or output pins.
Function 2: High current PWM output pins which can be used
for motor drive. These pins interface to the coils of motor 5.
PWM output on M5C0M results in a positive current flow
through coil 0 when M5C0P is driven to a logic high state.
Function 1: Port W general purpose input or output pins.
Function 2: High current PWM output pins which can be used
for motor drive. These pins interface to the coils of motor 4.
PWM output on M4C1M results in a positive current flow
through coil 1 when M4C1P is driven to a logic high state.
Function 1: Port W general purpose input or output pins.
Function 2: High current PWM output pins which can be used
for motor drive. These pins interface to the coils of motor 4.
PWM output on M4C0M results in a positive current flow
through coil 0 when M4C0P is driven to a logic high state.
Supply input pin for the LCD driver. Adjusting the voltage on
this pin will change the display contrast.
PU0
M0C0M
PV7
M3C1P
PV6
M3C1M
PV5
M3C0P
PV4
M3C0M
PV3
M2C1P
PV2
M2C1M
PV1
M2C0P
PV0
M2C0M
PW7
M5C1P
PW6
M5C1M
PW5
M3C0P
PW4
M5C0M
PW3
M4C1P
PW2
M4C1M
PW1
M4C0P
PW0
M4C0M
VLCD
Table 2 Pin Descriptions
Note: Features shown in bold are not available in the 9S12H256 112 pin QFP package.
Note: Features shown in Italics are only available for the “Z” versions
Pin Name
Function 1
Pin Name
Function 2
Pin Name
Function 3
Pin Name
Function 4
Description