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Chapter 1 MC9S12XF-Family Reference Manual
MC9S12XF - Family Reference Manual, Rev.1.19
Freescale Semiconductor
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— Full LIN master or slave capability when used in conjunction with the integrated LIN SCI
module
System Integrity Support
— Power-on reset (POR)
— Illegal address detection with reset
— Low-voltage detection with interrupt or reset
— Computer Operating Properly (COP) watchdog
– Congurable as window COP for enhanced failure detection
– Can be initialized out of reset using option bits located in Flash
— Clock monitor supervising the correct function of the oscillator
Memory Options
— 128K, 256k, 384K and 512K byte Flash
— 2K, 4K byte Emulated EEPROM
— 16K, 20K, 24K and 32K Byte RAM
— Program Flash General Features
– 64 data bits plus 8 syndrome ECC (Error Correction Code) bits allow single bit fault
correction and double fault detection
– Erase sector size 1024 bytes
– Automated program and erase algorithm
– Security option to prevent unauthorized access
– Sense-amp margin level setting for reads
— Data Flash General Features
– Up to 32K bytes of D-Flash memory with 256-byte sectors for user access.
– Dedicated commands to access D-Flash memory over EEE operation
– Single bit fault correction and double fault detection within a word during read operations
– Automated program and erase algorithm with verify and generation of ECC parity bits
– Fast sector erase and word program operation
– Ability to program up to four words in a burst sequence
— Emulated EEPROM General Features
– Automatic EEE le handling using internal Memory Controller
– Automatic transfer of valid EEE data from D-Flash memory to buffer RAM on reset
– Ability to monitor the number of outstanding EEE related buffer RAM words left to be
programmed into D-Flash memory
– Ability to disable EEE operation and allow priority access to the D-Flash memory
– Ability to cancel all pending EEE operations to allow priority access to the D-Flash memory
Oscillator (OSC_LCP)
— Loop Control Pierce oscillator utilizing a 4MHz to 16MHz crystal
— Good noise immunity