詳情，請(qǐng)下載：飛思卡爾16位MC9S12XDP512V2數(shù)據(jù)手冊(cè).pdf

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　　The MC9S12XD family will retain the low cost, power consumption, EMC and code-size efficiency
advantages currently enjoyed by users of Freescale's existing 16-Bit MC9S12 MCU Family.

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　　Based around an enhanced S12 core, the MC9S12XD family will deliver 2 to 5 times the performance of
a 25-MHz S12 whilst retaining a high degree of pin and code compatibility with the S12.

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　　The MC9S12XD family introduces the performance boosting XGATE module. Using enhanced DMA
functionality, this parallel processing module offloads the CPU by providing high-speed data processing and transfer between peripheral modules, RAM, Flash EEPROM and I/O ports. Providing up to 80 MIPS of performance additional to the CPU, the XGATE can access all peripherals, Flash EEPROM and the RAM block.

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　　The MC9S12XD family is composed of standard on-chip peripherals including up to 512 Kbytes of Flash
EEPROM, 32 Kbytes of RAM, 4 Kbytes of EEPROM, six asynchronous serial communications interfaces
(SCI), three serial peripheral interfaces (SPI), an 8-channel IC/OC enhanced capture timer, an 8-channel,10-bit analog-to-digital converter, a 16-channel, 10-bit analog-to-digital converter, an 8-channel pulse-width modulator (PWM), five CAN 2.0 A, B software compatible modules (MSCAN12), two
inter-IC bus blocks, and a periodic interrupt timer. The MC9S12XD family has full 16-bit data paths
throughout.