Datasheet

MCU Block Diagram
MC68HC908GZ60 • MC68HC908GZ48 • MC68HC908GZ32 Data Sheet, Rev. 6
Freescale Semiconductor 25
• Specific features in 48-pin LQFP are:
– Port A is 8 bits: PTA0–PTA7; shared with ADC and KBI modules
– Port B is 8 bits: PTB0–PTB7; shared with ADC module
– Port C is only 7 bits: PTC0–PTC6; shared with MSCAN module
– Port D is 8 bits: PTD0–PTD7; shared with SPI, TIM1, and TIM2 modules
– Port E is only 6 bits: PTE0–PTE5; shared with ESCI module
• Specific features in 64-pin QFP are:
– Port A is 8 bits: PTA0–PTA7; shared with ADC and KBI modules
– Port B is 8 bits: PTB0–PTB7; shared with ADC module
– Port C is only 7 bits: PTC0–PTC6; shared with MSCAN module
– Port D is 8 bits: PTD0–PTD7; shared with SPI, TIM1, andTIM2 modules
– Port E is only 6 bits: PTE0–PTE5; shared with ESCI module
– Port F is 8 bits: PTF0–PTF7; shared with TIM2 module
– Port G is 8 bits; PTG0–PTG7; shared with ADC module
1.2.2 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
1.3 MCU Block Diagram
Figure 1-1 shows the structure of the MC68HC908GZ60. Refer to Appendix A MC68HC908GZ48 and
Appendix B MC68HC908GZ32.
1.4 Pin Assignments
Figure 1-2, Figure 1-3, and Figure 1-4 illustrate the pin assignments for the 32-pin LQFP, 48-pin LQFP,
and 64-pin QFP respectively.