MC9S12H256 Device User Guide — V01.18
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– BDM (Background Debug Mode)
• CRG (low current oscillator, PLL, reset, clocks, COP watchdog, real time interrupt, clock monitor)
• 8-bit and 4-bit ports with interrupt functionality
– Digital filtering
– Programmable rising or falling edge trigger
• Memory
– 128K, 256K Flash EEPROM
– 2K, 4K byte EEPROM
– 6K, 12K byte RAM
• Analog-to-Digital Converter
– 8, 16 channels, 10-bit resolution
– External conversion trigger capability
• Two 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 8x8bit
– Four separate interrupt channels for Rx, Tx, error and wake-up
– Low-pass filter wake-up function
– Loop-back for self test operation
• Timer
– 16-bit main counter with 7-bit prescaler
– 8 programmable input capture or output compare channels
– Two 8-bit or one 16-bit pulse accumulators
• 2, 6 PWM channels
– Programmable period and duty cycle
– 8-bit 2, 6-channel or 16-bit 1, 3-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
• Serial interfaces
– Two asynchronous Serial Communications Interfaces (SCI)
– Synchronous Serial Peripheral Interface (SPI)
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