MC9S12P128_10 Datasheet, PDF (19/566 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

Device Overview MC9S12P-Family
• Pulse width modulation (PWM) module with 6 x 8-bit channels
• 10-channel, 12-bit resolution successive approximation analog-to-digital converter (ATD)
• One serial peripheral interface (SPI) module
• One serial communication interface (SCI) module supporting LIN communications
• One multi-scalable controller area network (MSCAN) module (supporting CAN protocol 2.0A/B)
• On-chip voltage regulator (VREG) for regulation of input supply and all internal voltages
• Autonomous periodic interrupt (API)
1.3 Module Features
The following sections provide more details of the modules implemented on the MC9S12P family.
1.3.1 S12 16-Bit Central Processor Unit (CPU)
S12 CPU is a high-speed 16-bit processing unit:
• Full 16-bit data paths supports efficient arithmetic operation and high-speed math execution
• Includes many single-byte instructions. This allows much more efficient use of ROM space.
• Extensive set of indexed addressing capabilities, including:
— Using the stack pointer as an indexing register in all indexed operations
— Using the program counter as an indexing register in all but auto increment/decrement mode
— Accumulator offsets using A, B, or D accumulators
— Automatic index predecrement, preincrement, postdecrement, and postincrement (by –8 to +8)
1.3.2 On-Chip Flash with ECC
On-chip flash memory on the MC9S12P features the following:
• Up to 128 Kbyte of program flash memory
— 32 data bits plus 7 syndrome ECC (error correction code) bits allow single bit error correction
and double fault detection
— Erase sector size 512 bytes
— Automated program and erase algorithm
— User margin level setting for reads
— Protection scheme to prevent accidental program or erase
• 4 Kbyte data flash space
— 16 data bits plus 6 syndrome ECC (error correction code) bits allow single bit error correction
and double fault detection
— Erase sector size 256 bytes
— Automated program and erase algorithm
— User margin level setting for reads
S12P-Family Reference Manual, Rev. 1.13
Freescale Semiconductor
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