mc9s12xs128 Freescale Semiconductor, Inc, mc9s12xs128 Datasheet - Page 20

• Manufacturer Part Number: mc9s12xs128
• Description: Hcs12 Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Device Overview S12XS Family
20
•
•
•
•
•
•
•
•
INT (interrupt module)
— Seven levels of nested interrupts
— Flexible assignment of interrupt sources to each interrupt level.
— External non-maskable high priority interrupt (XIRQ)
— The following inputs can act as Wake-up Interrupts
MMC (module mapping control)
DBG (debug module)
— Monitoring of CPU bus with tag-type or force-type breakpoint requests
— 64 x 64-bit circular trace buffer captures change-of-flow or memory access information
BDM (background debug mode)
OSC_LCP (oscillator)
— Low power loop control Pierce oscillator utilizing a 4MHz to 16MHz crystal
— Good noise immunity
— Full-swing Pierce option utilizing a 2MHz to 40MHz crystal
— Transconductance sized for optimum start-up margin for typical crystals
IPLL (Internally filtered, frequency modulated phase-locked-loop clock generation)
— No external components required
— Configurable option to spread spectrum for reduced EMC radiation (frequency modulation)
CRG (clock and reset generation)
— COP watchdog
— Real time interrupt
— Clock monitor
— Fast wake up from STOP in self clock mode
Memory Options
— 64K, 128K and 256K byte Flash
— Flash General Features
— 4K and 8K byte Data Flash space
– IRQ and non-maskable XIRQ
– CAN receive pins
– SCI receive pins
– Depending on the package option up to 20 pins on ports J, H and P configurable as rising or
– 64 data bits plus 8 syndrome ECC (Error Correction Code) bits allow single bit failure
– Erase sector size 1024 bytes
– Automated program and erase algorithm
– Protection scheme to prevent accidental program or erase
– Security option to prevent unauthorized access
– Sense-amp margin level setting for reads
falling edge sensitive
correction and double fault detection
S12XS Family Reference Manual, Rev. 1.10
Freescale Semiconductor