![](http://datasheet.mmic.net.cn/230000/9S12H128_datasheet_15574440/9S12H128_16.png)
16-bit Microcontroller HCS12H Family, Rev. 11.1
16
Freescale Semiconductor
PRELIMINARY
Pin Assignments
PS7
SS
Function 1: Port S general purpose input or output pin.
Function 2: Slave select pin for the Serial Peripheral Interface
(SPI).
Function 1: Port S general purpose input or output pin.
Function 2: Serial clock pin for the Serial Peripheral Interface
(SPI).
Function 1: Port S general purpose input or output pin.
Function 2: Master output (during master mode) or slave input
(during slave mode) pin for the Serial Peripheral Interface
(SPI).
Function 1: Port S general purpose input or output pin.
Function 2: Master input (during master mode) or slave output
(during slave mode) pin for the Serial Peripheral Interface
(SPI).
Function 1: Port S general purpose input or output pin.
Function 2: Transmit pin of Serial Communication
Interface 1 (SCI1).
Function 1: Port S general purpose input or output pin.
Function 2: Receive pin of Serial Communication
Interface 1 (SCI1).
Function 1: Port S general purpose input or output pin.
Function 2: Transmit pin of Serial Communication Interface 0
(SCI0).
Function 1: Port S general purpose input or output pin.
Function 2: Receive pin of Serial Communication Interface 0
(SCI0).
Function 1: Port T general purpose input or output pins.
Function 2: Timer input capture or output compare pins.
Function 1: Port T general purpose input or output pins.
Function 2: Timer input capture or output compare pins.
Function 3: LCD frontplane segment driver output pins.
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 1.
PWM output on M1C1M results in a positive current flow
through coil 1 when M1C1P is driven to a logic high state.
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 1.
PWM output on M1C0M results in a positive current flow
through coil 0 when M1C0P is driven to a logic high state.
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 M0C1M results in a positive current flow
through coil 1 when M0C1P is driven to a logic high state.
PS6
SCK
PS5
MOSI
PS4
MISO
PS3
TXD1
PS2
RXD1
PS1
TXD0
PS0
RXD1
PT[7:4]
IOC[7:4]
PT[3:0]
IOC[3:0]
FP[27:24]
PU7
M1C1P
PU6
M1C1M
PU5
M1C0P
PU4
M1C0M
PU3
M0C1P
PU2
M0C1M
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