M68HC08 datasheet(83/332 Pages) FREESCALE

tên linh kiện	M68HC08

Giải thích chi tiết về linh kiện	MC68HC908JB16 Technical Data

PDF	332 Pages

Scroll/Zoom	100%

nhà sản xuất	FREESCALE [Freescale Semiconductor, Inc]

Trang chủ	http://www.freescale.com

Logo

83 / 332 page

Central Processor Unit (CPU)

MC68HC908JB16 — Rev. 1.1

Technical Data

Freescale Semiconductor

Central Processor Unit (CPU)

6.6.2 Stop Mode

The STOP instruction:

•

Clears the interrupt mask (I bit) in the condition code register,

enabling external interrupts. After exit from stop mode by external

interrupt, the I bit remains clear. After exit by reset, the I bit is set.

•

Disables the CPU clock.

After exiting stop mode, the CPU clock begins running after the oscillator

stabilization delay.

6.7 CPU During Break Interrupts

If the break module is enabled, a break interrupt causes the CPU to

execute the software interrupt instruction (SWI) at the completion of the

current CPU instruction. (See Section 19. Break Module (BRK).) The

program counter vectors to $FFFC–$FFFD ($FEFC–$FEFD in monitor

mode).

A return-from-interrupt instruction (RTI) in the break routine ends the

break interrupt and returns the MCU to normal operation if the break

interrupt has been deasserted.

6.8 Instruction Set Summary

Table 6-1 provides a summary of the M68HC08 instruction set.

6.9 Opcode Map

The opcode map is provided in Table 6-2.

M68HC08 bảng dữ liệu(PDF) 83 Page - Freescale Semiconductor, Inc