MC68HC908KX8 Datasheet, PDF (31/310 Pages) Motorola, Inc – Microcontrollers

General Description
MCU Block Diagram
• Low-voltage inhibit (LVI) module with software selectable trip
points, 2.6-V or 4.3-V trip point
• Timebase module (TBM) with
– Clock prescalar for eight user-selectable, periodic real-time
interrupts
– Active clock source in stop mode for periodic wakeup from stop
using external crystal or internal oscillator
• External asynchronous interrupt pin with internal pullup (IRQ1)
• System protection features:
– Computer operating properly (COP) reset
– Low-voltage detection with reset
– Illegal opcode detection with reset
– Illegal address detection with reset
• 16-pin plastic dual in-line (PDIP) or small outline (SOIC) package
• Low-power design fully static with stop and wait modes
• Internal power-up reset circuit requiring no external pins
• –40°C to +125°C operation
Features of the CPU08 include:
• Enhanced HC05 programming model
• Extensive loop control functions
• 16 addressing modes, eight more than the M68HC05
• 16-bit index register and stack pointer
• Memory-to-memory data transfers
• Fast 8 × 8 multiply instruction
• Fast 16/8 divide instruction
• Binary-coded decimal (BCD) instructions
• Optimization for controller applications
• Third party C language support
1.4 MCU Block Diagram
Figure 1-1 shows the structure of the MC68HC908KX8 MCU.
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 — Rev. 1.0
MOTOROLA
General Description
Technical Data
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