MC9S12E32CFU FREESCALE [Freescale Semiconductor, Inc], MC9S12E32CFU Datasheet - Page 21

• Manufacturer Part Number: MC9S12E32CFU
• Description: HCS12 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Chapter 1
MC9S12E128 Device Overview (MC9S12E128DGV1)
1.1
The MC9S12E128 is a 112/80/64 pin low cost general purpose MCU comprised of standard on-chip
peripherals including a 16-bit central processing unit (HCS12 CPU), up to 128K bytes of Flash EEPROM,
up to 8K bytes of RAM, three asynchronous serial communications interface modules (SCI), a serial
peripheral interface (SPI), an Inter-IC Bus (IIC), three 4-channel 16-bit timer modules (TIM), a 6-channel
15-bit Pulse Modulator with Fault protection module (PMF), a 6-channel 8-bit Pulse Width Modulator
(PWM), a 16-channel 10-bit analog-to-digital converter (ADC), and two 1-channel 8-bit digital-to-analog
converters (DAC). The MC9S12E128 has full 16-bit data paths throughout. The inclusion of a PLL circuit
allows power consumption and performance to be adjusted to suit operational requirements. In addition to
the I/O ports available on each module, 16 dedicated I/O port bits are available with Wake-Up capability
from STOP or WAIT mode. Furthermore, an on chip bandgap based voltage regulator (VREG) generates
the internal digital supply voltage of 2.5V (VDD) from a 3.135V to 5.5V external supply range.
1.1.1
Freescale Semiconductor
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16-bit HCS12 CORE
— HCS12 CPU
— Module Mapping Control (MMC)
— Interrupt control (INT)
— Background Debug Module (BDM)
— Debugger (DBG12) including breakpoints and change-of-flow trace buffer
— Multiplexed External Bus Interface (MEBI)
Wake-Up interrupt inputs
— Up to 16 port bits available for wake up interrupt function with digital filtering
Memory Options
— 32K, 64K or 128K Byte Flash EEPROM
— 2K, 4K or 8K Byte RAM
Introduction
– i. Upward compatible with M68HC11 instruction set
– ii. Interrupt stacking and programmer’s model identical to M68HC11
– iii. Instruction queue
– iv. Enhanced indexed addressing
Features
MC9S12E128 Data Sheet, Rev. 1.07
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