MC68HC908PT48中文资料恩XP数据手册PDF规格书

特性 Features

Features of the MC68HC(9)08PT48 include:

• High-performance M68HC08 architecture

• Fully upward-compatible object code with M6805, M146805, and

M68HC05 Families

• On-chip FLASH/ROM of 48 Kbytes

• On-chip FLASH of 2 Kbytes separate from program ROM/FLASH

• ROM data security1 option (no security option for

MC68HC908PT48)

• Configuration register (CONFIG)

• 2.5 Kbytes of on-chip MCU random-access memory (RAM)

• 56 general-purpose input/output (I/O) pins

• Programmable phase locked loop (PLL) for bus clock generation

• Serial peripheral interface module (SPI)

• Serial communications interface module (SCI)

• Timebase module (TBM) with software selection of crystal clock

source

• Two external interrupt request pins

• ALERT generator module (ALR)

• 16-bit, 4-channel timer interface module (TIM)

• Computer operating properly (COP) reset

• 8-bit, 4-channel analog-to-digital converter (ADC)

• System protection features:

– Illegal opcode detect reset

– Illegal address detect reset

• Packaged in an 80-pin quad flat pack (LQFP)

• Low-power design (fully static with stop and wait modes)

• Master reset pin and power-on reset (POR)

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

• Fast 8 x 8 multiply instruction

• Fast 16 ¸ 8 divide instruction

• Binary coded decimal (BCD) instructions

• Optimization for controller applications

• High-level language (C language) support