mc68hc912bd32 Freescale Semiconductor, Inc, mc68hc912bd32 Datasheet - Page 251
mc68hc912bd32
Manufacturer Part Number
mc68hc912bd32
Description
16-bit Device Composed Of Standard On-chip Peripherals
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC912BD32.pdf
(292 pages)
- Current page: 251 of 292
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CCRSAV — BDM CCR Holding Register
CCRSAV
Breakpoints
17-dev
NOTE 1
1. Initialized to equal the CPU12 CCR register by the firmware.
RESET:
(1)
CCR7
BIT 7
X
CCR6
X
6
The CCRSAV register is used to save the CCR of the users program
when entering BDM. It is also used for temporary storage in the BDM
firmware.
Read and write: all modes
Hardware breakpoints are used to debug software on the
MC68HC912BD32 by comparing actual address and data values to
predetermined data in setup registers. A successful comparison will
place the CPU in background debug mode (BDM) or initiate a software
interrupt (SWI). Breakpoint features designed into the BDM256 include:
•
•
•
•
•
•
•
•
Freescale Semiconductor, Inc.
For More Information On This Product,
Mode selection for BDM or SWI generation
Program fetch tagging for cycle of execution breakpoint
Second address compare in dual address modes
Range compare by disable of low byte address
Data compare in full feature mode for non-tagged breakpoint
Byte masking for high/low byte data compares
R/W compare for non-tagged compares
Tag inhibit on BDM TRACE
CCR5
X
5
Go to: www.freescale.com
Development Support
CCR4
X
4
CCR3
X
3
CCR2
X
2
CCR1
X
1
MC68HC912BD32 Rev 1.0
Development Support
CCR0
BIT 0
X
Breakpoints
$FF06
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