MC9S12HZ256 Datasheet, PDF (538/692 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Chapter 19 Debug Module (DBGV1)
CLOCKS AND
CONTROL SIGNALS
......
CONTROL BLOCK
BREAKPOINT MODES
AND GENERATION OF SWI,
FORCE BDM, AND TAGS
BKP CONTROL
SIGNALS
......
EXPANSION ADDRESS
ADDRESS
WRITE DATA
READ DATA
BKP READ
DATA BUS
WRITE
DATA BUS
REGISTER BLOCK
BKPCT0
BKPCT1
BKP0X
BKP0H
BKP0L
BKP1X
BKP1H
BKP1L
COMPARE BLOCK
COMPARATOR
COMPARATOR
COMPARATOR
COMPARATOR
COMPARATOR
COMPARATOR
COMPARATOR
COMPARATOR
EXPANSION ADDRESSES
ADDRESS HIGH
ADDRESS LOW
EXPANSION ADDRESSES
DATA/ADDRESS
HIGH MUX
DATA/ADDRESS
LOW MUX
DATA HIGH
ADDRESS HIGH
DATA LOW
ADDRESS LOW
READ DATA HIGH
READ DATA LOW
Figure 19-1. DBG Block Diagram in BKP Mode
MC9S12HZ256 Data Sheet, Rev. 2.04
538
Freescale Semiconductor