Features
Features include the following:
High-performance M68HC08 architecture
Fully upward-compatible object code with M6805, M146805, and M68HC05 Families
8.4-MHz internal bus frequency at 125°C
MSCAN08 controller (scalable CAN) (implementing CAN 2.0b protocol as defined in BOSCH
specification September, 1991)
Available in 64-pin quad flat pack (QFP)
32,256 bytes user read-only memory (ROM)
User ROM data security(1)
512 bytes of on-chip electrically erasable programmable read-only memory (EEPROM) with
security feature
1 Kbyte of on-chip random-access memory (RAM)
Serial peripheral interface (SPI) module
Serial communications interface (SCI) module
16-bit timer interface module (TIMA) with six input capture/output compare channels
16-bit timer interface module (TIMB) with two input capture/output compare channels
Programmable interrupt timer (PIT)
Clock generator module (CGM)
8-bit, 15-channel analog-to-digital convertor (ADC)
5-bit keyboard interrupt module (KBI)
System protection features:
– Computer operating properly (COP) with optional reset
– Low-voltage detection with optional reset
– Illegal opcode detection with optional reset
– Illegal address detection with optional reset
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
Memory-to-memory data transfers
Fast 8 × 8 multiply instruction
Fast 16/8 divide instruction
Binary-coded decimal (BCD) instructions
Optimization for controller applications
C language support