MC9S12T64 Datasheet, PDF (548/608 Pages) Motorola, Inc – Specification

Breakpoint (BKP)
Freescale Semiconductor, Inc.
tagged breakpoints allow for breaking just before a specific instruction
executes. Tagged breakpoints will only occur on addresses. Tagging on
data is not allowed; however, if this occurs, nothing will happen within
the BKP.
The BKP allows breaking within a 256 byte address range and/or within
expanded memory. It allows matching of the data as well as address
matching and to match 8 bit or 16 bit data. Forced breakpoints can
match on a read or a write cycle.
Features
• Full or Dual Breakpoint Mode
– Compare on address and data (Full)
– Compare on either of two addresses (Dual)
• BDM or SWI Breakpoint
– Enter BDM on breakpoint (BDM)
– Execute SWI on breakpoint (SWI)
• Tagged or Forced Breakpoint
– Break just before a specific instruction will begin execution
(TAG)
– Break on the first instruction boundary after a match occurs
(Force)
• Single, Range, or Page address compares
– Compare on address (Single)
– Compare on address 256 byte (Range)
– Compare on any 16K Page (Page)
• Compare address on read or write on forced breakpoints
• High and/or low byte data compares
MC9S12T64Revision 1.1.1
548
Breakpoint (BKP)
For More Information On This Product,
Go to: www.freescale.com
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