MC68HC908GR16 Datasheet, PDF (21/310 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
General Description
MCU Block Diagram
• Specific features of the MC68HC908GR16 in 32-pin LQFP are:
– Port A is only 4 bits: PTA0–PTA3; 4-pin keyboard interrupt (KBI) module
– Port B is only 6 bits: PTB0–PTB5; 6-channel ADC module
– Port C is only 2 bits: PTC0–PTC1
– Port D is only 7 bits: PTD0–PTD6; shared with SPI, TIM1, and TIM2
modules
– Port E is only 2 bits: PTE0–PTE1; shared with ESCI module
• Specific features of the MC68HC908GR16 in 48-pin LQFP are:
– Port A is 8 bits: PTA0–PTA7; 8-pin KBI module
– Port B is 8 bits: PTB0–PTB7; 8-channel ADC module
– Port C is only 7 bits: PTC0–PTC6
– 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
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 MC68HC908GR16.
1.4 Pin Assignments
Figure 1-2 and Figure 1-3 illustrate the pin assignments for the 32-pin LQFP and
48-pin LQFP respectively.
MC68HC908GR16 — Rev. 1.0
MOTOROLA
General Description
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Data Sheet
21