MC68HC912BD32CFU10 FREESCALE [Freescale Semiconductor, Inc], MC68HC912BD32CFU10 Datasheet - Page 255

• Manufacturer Part Number: MC68HC912BD32CFU10
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

BRKCT1 — Breakpoint Control Register 1
21-dev
RESET:
Bit 7
0
0
BKDBE
6
0
BKDBE — Enable Data Bus
BKMBH — Breakpoint Mask High
BKMBL — Breakpoint Mask Low
BK1RWE — R/W Compare Enable
BK1ALE
This register is read/write in all modes.
Enables comparing of address or data bus values using the BRKDH/L
registers.
Disables the comparing of the high byte of data when in full breakpoint
mode. Used in conjunction with the BKDBE bit (which should be set)
Disables the matching of the low byte of data when in full breakpoint
mode. Used in conjunction with the BKDBE bit (which should be set)
Enables the comparison of the R/W signal to further specify what
causes a match. This bit is NOT useful in program breakpoints or in
full breakpoint mode. This bit is used in conjunction with a second
address in dual address mode when BKDBE=1.
Freescale Semiconductor, Inc.
–
–
0
1
For More Information On This Product,
0 = The BRKDH/L registers are not used in any comparison
1 = The BRKDH/L registers are used to compare address or data
0 = High byte of data bus (bits 15:8) are compared to BRKDH
1 = High byte is not used to in comparisons
0 = Low byte of data bus (bits 7:0) are compared to BRKDL
1 = Low byte is not used to in comparisons.
0 = R/W is not used in comparisons
BKMBH
5
0
(depending upon the mode selections BKEN1,0)
BK0ALE
Table 62 Breakpoint Address Range Control
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0
1
–
–
Development Support
BKMBL
4
0
Upper 8-bit address only for full mode or dual mode BKP0
Full 16-bit address for full mode or dual mode BKP0
Upper 8-bit address only for dual mode BKP1
Full 16-bit address for dual mode BKP1
BK1RWE
3
0
Address Range Selected
BK1RW
2
0
BK0RWE
1
0
MC68HC912BD32 Rev 1.0
Development Support
BK0RW
Bit 0
0
Breakpoints
$0021