s908az32ag2cfue Freescale Semiconductor, Inc, s908az32ag2cfue Datasheet - Page 114

• Manufacturer Part Number: s908az32ag2cfue
• Description: M68hc08 Microcontrollers 8-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Brake Module
11.3.1 Flag Protection During Break Interrupts
The BCFE bit in the break flag control register (BFCR) enables software to clear status bits during the
break state.
11.3.2 CPU During Break Interrupts
The CPU starts a break interrupt by:
The break interrupt begins after completion of the CPU instruction in progress. If the break address
register match occurs on the last cycle of a CPU instruction, the break interrupt begins immediately.
11.3.3 TIM During Break Interrupts
A break interrupt stops the timer counter.
11.3.4 COP During Break Interrupts
The COP is disabled during a break interrupt when V
11.4 Low-Power Modes
The WAIT and STOP instructions put the MCU in low power-consumption standby modes.
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Break Address Register High
Break Address Register Low
Register Name
Loading the instruction register with the SWI instruction
Loading the program counter with $FFFC:$FFFD ($FEFC:$FEFD in monitor mode)
Break Status and Control
Register (BSCR)
(BRKH)
(BRKL)
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
Table 11-1. I/O Register Address Summary
Register
Address
Bit 7
BRKE
Bit 15
Bit 7
Figure 11-2. I/O Register Summary
0
0
0
MC68HC908AZ32A Data Sheet, Rev. 2
= Unimplemented
BRKA
14
6
0
6
0
0
$FE0C
BRKH
13
5
0
5
0
0
0
Hi
$FE0D
BRKL
is present on the RST pin.
12
4
0
4
0
0
0
$FE0B
BSCR
11
3
0
3
0
0
0
10
2
0
2
0
0
0
Freescale Semiconductor
1
9
0
1
0
0
0
Bit 0
Bit 8
Bit 0
0
0
0
0