HCS12COREUG View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
MFG CO.
'HCS12COREUG' PDF : 124 Pages View PDF
MC9S12H256 Device User Guide — V01.14
Pin Name Pin Name
Function 1 Function 2
PS5
MOSI
PS4
MISO
PS3
TXD1
PS2
RXD1
PS1
TXD0
PS0
RXD0
PT[7:4]
IOC[7:4]
PT[3:0]
IOC[3:0]
PU[3:0]
M0C0M
M0C0P
M0C1M
M0C1P
PU[7:4]
M1C0M
M1C0P
M1C1M
M1C1P
PV[3:0]
M2C0M
M2C0P
M2C1M
M2C1P
PV[7:4]
M3C0M
M3C0P
M3C1M
M3C1P
PW[3:0]
M4C0M
M4C0P
M4C1M
M4C1P
PW[7:4]
M5C0M
M5C0P,
M5C1M
M5C1P
Pin Name
Function 3
—
—
—
—
—
—
—
FP[27:24]
—
—
—
—
—
—
Pin Name
Function 4
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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VDDX2
VDDX2
VDDX2
VDDX2
VDDX2
VDDX2
VDDX1
VDDX1
VDDM
VDDM
VDDM
VDDM
VDDM
VDDM
Description
Port S I/O, MOSI of SPI
Port S I/O, MISO of SPI
Port S I/O, TXD of SCI1
Port S I/O, RXD of SCI1
Port S I/O, TXD of SCI0
Port S I/O, RXD of SCI0
Port T I/O, Timer channels
Port T I/O, Timer channels, LCD driver
Port U I/O, Motor0 of MC
Port U I/O, Motor1 of MC
Port V I/O, Motor2 of MC
Port V I/O, Motor3 of MC
Port W I/O, Motor4 of MC
Port W I/O, Motor5 of MC
2.3 Detailed Signal Descriptions
2.3.1 EXTAL, XTAL — Oscillator Pins
EXTAL and XTAL are the crystal driver and external clock pins. On reset all the device clocks are derived
from the EXTAL input frequency. XTAL is the crystal output.
2.3.2 RESET — External Reset Pin
An active low bidirectional control signal, it acts as an input to initialize the MCU to a known start-up
state, and an output when an internal MCU function causes a reset.
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