MC912DG128ACPVE Datasheet, PDF (420/478 Pages) Freescale Semiconductor, Inc – Upward compatible with M68HC11 instruction set

Freescale Semiconductor, Inc.
Development Support
Table 20-10. Tag Pin Function
TAGHI
1
1
0
0
TAGLO
1
0
1
0
Tag
no tag
low byte
high byte
both bytes
The tag follows program information as it advances through the queue.
When a tagged instruction reaches the head of the queue, the CPU
enters active background debugging mode rather than execute the
instruction.
Technical Data
420
MC68HC912DT128A — Rev 4.0
Development Support
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA