Freescale Semiconductor MC68HC08KH12 User Manual
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:
0
0
0
0
0
0
0
0
$FE0D
Break Address Register
Low
(BRKL)
Read:
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
Write:
Reset:
0
0
0
0
0
0
0
0
$FE0E
Break Status/Control
Register
(BRKSCR)
Read:
BRKE
BRKA
0
0
0
0
0
0
Write:
Reset:
0
0
0
0
0
0
0
0
= Unimplemented