MC68HC908GP20 Datasheet, PDF (34/406 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

• Oscillator stop mode enable bit (OSCSTOPENB) in the CONFIG
register to allow user selection of having the oscillator enabled or
disabled during stop mode
• 8-bit keyboard wakeup port
• 5-mA maximum current injection on all port pins to maintain input
protection
• 40-pin plastic dual-in-line package (DIP) or 44-pin quad flat pack
(QFP)
• Specific features of the MC68HC908GP20 in 40-pin DIP are:
– Port C is only 5 bits: PTC0–PTC4
– Port D is only 6 bits: PTD0–PTD5; single 2-channel TIM
module
1.3.2 Features of the CPU08
Features of the CPU08 include:
• Enhanced HC05 programming model
• Extensive loop control functions
• 16 addressing modes (eight more than the HC05)
• 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
• Efficient C language support
1.4 MCU Block Diagram
Figure 1-1 shows the structure of the MC68HC908GP20. Text in
parentheses within a module block indicates the module name. Text in
parentheses next to a signal indicates the module which uses the signal.
Advance Information
34
MC68HC908GP20 — Rev 2.1
Freescale Semiconductor