HCS12H datasheet(16/28 Pages) FREESCALE

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16-bit Microcontroller HCS12H Family, Rev. 11.1

Freescale Semiconductor

PRELIMINARY

Pin Assignments

PS7



Function 1: Port S general purpose input or output pin.

Function 2: Slave select pin for the Serial Peripheral Interface

(SPI).

PS6

SCK



Function 1: Port S general purpose input or output pin.

Function 2: Serial clock pin for the Serial Peripheral Interface

(SPI).

PS5

MOSI



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).

PS4

MISO



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).

PS3

TXD1



Function 1: Port S general purpose input or output pin.

Function 2: Transmit pin of Serial Communication

Interface 1 (SCI1).

PS2

RXD1



Function 1: Port S general purpose input or output pin.

Function 2: Receive pin of Serial Communication

Interface 1 (SCI1).

PS1

TXD0



Function 1: Port S general purpose input or output pin.

Function 2: Transmit pin of Serial Communication Interface 0

(SCI0).

PS0

RXD1



Function 1: Port S general purpose input or output pin.

Function 2: Receive pin of Serial Communication Interface 0

(SCI0).

PT[7:4]

IOC[7:4]



Function 1: Port T general purpose input or output pins.

Function 2: Timer input capture or output compare pins.

PT[3:0]

IOC[3:0]

FP[27:24]



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.

PU7

M1C1P



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.

PU6

M1C1M



PU5

M1C0P



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.

PU4

M1C0M



PU3

M0C1P



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.

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

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