特性 Features

HCS12X Core

– 16-bit HCS12X CPU

i. Upward compatible with MC9S12 instruction set

ii. Interrupt stacking and programmer’s model identical to MC9S12

iii. Instruction queue

iv. Enhanced indexed addressing

v. Enhanced instruction set

– EBI (External Bus Interface)

– MMC (Module Mapping Control)

– INT (Interrupt Controller)

– DBG (Debug module to monitor HCS12X CPU and XGATE bus activity)

– BDM (Background Debug Mode)

? XGATE

– Peripheral Co-Processor

– Parallel processing module offloads the CPU by providing high speed data processing transfer

between peripheral modules, RAM and I/O ports

? PIT Periodic Interrupt Timer

– Four Timers with independent time-out periods

– Time-out periods selectable between 1 and 224 bus clock cycles

? CRG

– Low Noise/Low Power Pierce oscillator

– PLL

– COP watchdog

– Real time interrupt

– Clock Monitor

– Fast Wake-up from Stop Mode

? 8-bit ports with interrupt functionality

– Digital filtering

– Programmable rising or falling edge trigger

? Memory

– 512K Flash EEPROM

– 4K byte EEPROM

– 20K byte RAM

? One 8-channel and one 16 channel Analog-to-Digital Converter

– 10-bit resolution

– External conversion trigger capability

? Five 1M bit per second, CAN 2.0 A, B software compatible modules

– Five receive and three transmit buffers

– Flexible identifier filter programmable as 2 x 32 bit, 4 x 16 bit or 8 x 8 bit

– Four separate interrupt channels for Rx, Tx, error and wake-up

– Low-pass filter wake-up function

– Loop-back for self test operation

? Enhanced Capture Timer

– 16-bit main counter with 7-bit prescaler

– 8 programmable input capture or output compare channels

– Four 8-bit or two 16-bit pulse accumulators

? 8 PWM channels

– Programmable period and duty cycle

– 8-bit 8-channel or 16-bit 4-channel

– Separate control for each pulse width and duty cycle

– Center-aligned or left-aligned outputs

– Programmable clock select logic with a wide range of frequencies

– Fast emergency shutdown input

– Usable as interrupt inputs

? Serial interfaces

– Six asynchronous Serial Communication Interfaces (SCI) with additional LIN support and

selectable IrDA 1.4 return-to-zero-inverted (RZI) format with programmable pulse widths

– Three Synchronous Serial Peripheral Interfaces (SPI)

? Two Inter-IC Bus modules (IIC)

– Compatible with I2C Bus standard

– Multi-master operation

– Software programmable for one of 256 different serial clock frequencies

? On chip Voltage Regulator

– Two parallel, linear voltage regulators with bandgap reference

– Low Voltage detect (LVD) with Low Voltage Interrupt (LVI)

– Power On Reset (POR) circuit

– 3.3V - 5.5V operation

– Low Voltage Reset (LVR)

– Ultra Low Power Wake-up Timer

? 144 Pin LQFP, 112-Pin LQFP package and 80-Pin QFP package

– I/O lines with 5V input and drive capability

– Input threshold on external bus interface inputs switchable for 3.3V or 5V operation

– 5V A/D converter inputs

– Operation at 80MHz equivalent to 40MHz Bus Speed

? Development support

– Single-wire background debug? mode (BDM)

– 4 on-chip hardware breakpoints