MC68HC912D60 Motorola, MC68HC912D60 Datasheet - Page 399

• Manufacturer Part Number: MC68HC912D60
• Description: Microcontrollers
• Manufacturer: Motorola

BRKCT1 — Breakpoint Control Register 1
MC68HC912D60A — Rev 3.0
MOTOROLA
RESET:
Bit 7
0
0
BKDBE
6
0
BK0ALE — Breakpoint 0 Range Control
This register is read/write in all modes.
BKDBE — Enable Data Bus
BKMBH — Breakpoint Mask High
BK1ALE BK0ALE
Valid 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)
Freescale Semiconductor, Inc.
–
–
0
1
For More Information On This Product,
0 = BRKAL will not be used to compare to the address bus.
1 = BRKAL will be used to compare to the address bus.
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 in comparisons
BKMBH
5
0
(depending upon the mode selections BKEN1,0)
Table 19-10. 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
Development Support
BK0RW
Bit 0
0
Technical Data
Breakpoints
$0021
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