Microcontrollers Data Sheet

MC68HC(7)08KH12 — Rev. 1.1 Advance Information
Freescale Semiconductor
243
Figure 16-1. Break Module Block Diagram
IAB[15:8]
IAB[7:0]
8-BIT COMPARATOR
8-BIT COMPARATOR
CONTROL
BREAK ADDRESS REGISTER LOW
BREAK ADDRESS REGISTER HIGH
IAB[15:0]
BKPT
(TO SIM)
Table 16-1. Break I/O Register Summary
Addr. Register Name Bit 7 6 5 4 3 2 1 Bit 0
$FE0C
Break Address Register
High
(BRKH)
Read:
Bit15 Bit14 Bit13 Bit12 Bit11 Bit10 Bit9 Bit8
Write:
Reset:00000000
$FE0D
Break Address Register
Low
(BRKL)
Read:
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
Write:
Reset:00000000
$FE0E
Break Status/Control
Register
(BRKSCR)
Read:
BRKE BRKA
000000
Write:
Reset:00000000
= Unimplemented