MC9S12B128 Datasheet, PDF (51/128 Pages) Motorola, Inc – microcontroller unit (MCU)

Device User Guide —9S12B128DGV1/D V01.11
Pin Name
Function1
PK7
PK[5:0]
PM7
PM6
PM5
PM4
PM3
PM2
PM1
PM0
PP7
Pin Name
Function2
Pin Name
Function
3
Pin Name
Function
4
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ECS
ROMCTL
—
XADDR[19:14] —
—
—
—
—
—
—
—
—
SCK
—
—
MOSI
—
—
SS0
—
—
MISO0
—
TXCAN0
—
—
RXCAN0
—
—
KWP7
PWM7
—
Internal Pull
Resistor
CTRL
Reset
State
Description
PUCR/
PUPKE
Port K I/O, Emulation Chip Select,
Up ^{ROM On Enable}
Port K I/O, Extended Addresses
Port M I/O
Port M I/O
Port M I/O, SCK of SPI0
PERM/
PPSM
Port M I/O, MOSI of SPI0
Port M I/O, SS of SPI0
Port M I/O, MISO of SPI0
Port M I/O, TX of CAN0
Port M I/O, RX of CAN0
Disabled ^{Port P I/O, Interrupt, Channel 7 of}
PWM
PP6
PP5
PP4
PP3
PP2
PP1
PP0
PS7
PS6
PS5
PS4
PS3
PS2
PS1
PS0
PT[7:0]
KWP6
KWP5
KWP4
KWP3
KWP2
KWP1
KWP0
SS0
SCK0
MOSI0
MISO0
TXD1
RXD1
TXD0
RXD0
IOC[7:0]
PWM6
PWM5
PWM4
PWM3
PWM2
PWM1
PWM0
—
—
—
—
—
—
—
—
—
—
Port P I/O, Interrupt, PWM Channel
6
—
VDDX _PERP/
—
PPSP
—
Port P I/O, Interrupt, PWM Channel 5
Port P I/O, Interrupt, PWM Channel 4
Port P I/O, Interrupt, PWM Channel 3
—
Port P I/O, Interrupt, PWM Channel 2
—
Port P I/O, Interrupt, PWM Channel 1
—
Port P I/O, Interrupt, PWM Channel 0
—
Port S I/O, SS of SPI0
—
Port S I/O, SCK of SPI0
—
Port S I/O, MOSI of SPI0
—
—
PERS/
PPSS
Port S I/O, MISO of SPI0
Up
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
—
PERT/
PPST
Disabled Port T I/O, Timer channels
NOTES:
1. Refer to PEAR register description in HCS12 Multiplexed External Bus Interface (MEBI) Block Guide.
2.2 Detailed Signal Descriptions
2.2.1 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.
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