MC9S12A512CPVE Description
The MC9S12DP512 microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit (HCS12 CPU), 512K bytes of Flash EEPROM, 14Kbytes of RAM, 4K bytes of EEPROM, two asynchronous serial communications interfaces (SCI), threeserial peripheral interfaces (SPI), an 8-channel IC/OC enhanced capture timer, two 8-channel, 10-bitanalog-to-digital converters (ADC), an 8-channel pulse-width modulator (PWM), a digital Byte Data LinkController (BDLC), 29 discrete digital I/O channels (Port A, Port B, Port K and Port E), 20 discrete digitalI/O lines with interrupt and wake up capability, five CAN 2.0 A, B software compatible modules(MSCAN12), and an Inter-IC Bus. The MC9S12DP512 has full 16-bit data paths throughout. However,the external bus can operate in an 8-bit narrow mode so single 8-bit wide memory can be interfaced forlower cost systems. The inclusion of a PLL circuit allows power consumption and performance to beadjusted to suit operational requirements.
MC9S12A512CPVE Features
? HCS12 Core
– 16-bit HCS12 CPU
i. Upward compatible with M68HC11 instruction set
ii. Interrupt stacking and programmer’s model identical to M68HC11
iii.Instruction queue
iv. Enhanced indexed addressing
– MEBI (Multiplexed External Bus Interface)
– MMC (Module Mapping Control)
– INT (Interrupt control)
– BKP (Breakpoints)
– BDM (Background Debug Mode)
? CRG (Clock and Reset Generation)
– Low current Colpitts oscillator or
– Pierce oscillator
– PLL
– 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
– 512K Flash EEPROM
– 4K byte EEPROM
– 14K byte RAM
? Two 8-channel Analog-to-Digital Converters
– 10-bit resolution
– External conversion trigger capability
? Five 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 8 x 8 bit
– Four separate interrupt channels for Rx, Tx, error and wake-up
– Low-pass filter wake-up function
– Loop-back for self test operation
? Enhanced Capture Timer
– 16-bit main counter with 7-bit prescaler
– 8 programmable input capture or output compare channels
– Four 8-bit or two 16-bit pulse accumulators
? 8 PWM channels
– Programmable period and duty cycle
– 8-bit 8-channel or 16-bit 4-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
– Usable as interrupt inputs
? Serial interfaces
– Two asynchronous Serial Communications Interfaces (SCI)
– Three Synchronous Serial Peripheral Interface (SPI)
? Byte Data Link Controller (BDLC)
– SAE J1850 Class B Data Communications Network Interface Compatible and ISO Compatible
for Low-Speed (<125 Kbps) Serial Data Communications in Automotive Applications
MC9S12A512CPVE Applications
User modes
? Normal and Emulation Operating Modes
– Normal Single-Chip Mode
– Normal Expanded Wide Mode
– Normal Expanded Narrow Mode
– Emulation Expanded Wide Mode
– Emulation Expanded Narrow Mode
? Special Operating Modes
– Special Single-Chip Mode with active Background Debug Mode
– Special Test Mode (Freescale use only)
– Special Peripheral Mode (Freescale use only)
Low power modes
? Stop Mode
? Pseudo Stop Mode
? Wait Mode
