MC68HC912BL16

Freescale Semiconductor, Inc... Freescale Semiconductor, Inc. Order this document by MC68HC912BL16TS/D MC68HC912BL16 Technical Summary 16-Bit Microcontroller 1 Introduction The MC68HC912BL16 microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit (CPU12), 16-Kbyte flash EEPROM, 512-byte RAM, 512-byte EEPROM, an asynchronous serial communications interface (SCI), a serial peripheral interface (SPI), an 7-channel timer and 16-bit pulse accumulator, an 10-bit analog-to-digital converter (ADC), and a four-channel pulse-width modulator (PWM). System resource mapping, clock generation, interrupt control and bus interfacing are managed by the Lite integration module (LIM). The MC68HC912BL16 has full 16-bit data paths throughout, however, the multiplexed external bus can operate in an 8-bit narrow mode so single 8-bit wide memory can be interfaced for lower cost systems. 1.1 Features 16-Bit CPU12 — Upward Compatible with M68HC11 Instruction Set — Interrupt Stacking and Programmer’s Model Identical to M68HC11 — 20-Bit ALU — Instruction Queue — Enhanced Indexed Addressing — Fuzzy Logic Instructions Multiplexed Bus — Single Chip or Expanded — 16/16 Wide or 16/8 Narrow Modes Memory — 16-Kbyte Flash EEPROM with 2-Kbyte Erase-Protected Boot Block — 512-byte EEPROM — 512-byte RAM with Single-Cycle Access for Aligned or Misaligned Read/Write 8-Channel, 10-bit Analog-to-Digital Converter 7-Channel Timer — Eac...