mc68hc908gr8vp Freescale Semiconductor, Inc, mc68hc908gr8vp Datasheet - Page 201

• Manufacturer Part Number: mc68hc908gr8vp
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

19.7 SIM Registers
The SIM has three memory-mapped registers.
19.7.1 SIM Break Status Register
The SIM break status register (SBSR) contains a flag to indicate that a break caused an exit from wait
mode
Freescale Semiconductor
INT/BREAK
CGMXCLK
IAB
Note: 1. Writing a logic 0 clears SBSW.
Address:
Reset:
Note : Previous data can be operand data or the STOP opcode, depending
Read:
CPUSTOP
Write:
Address
R/W
$FE00
$FE01
$FE03
IDB
IAB
Figure 19-19. Stop Mode Recovery from Interrupt or Break
on the last instruction.
$FE00
Bit 7
R
R
0
Figure 19-20. SIM Break Status Register (SBSR)
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
STOP ADDR
STOP +1
= Reserved
Figure 19-18. Stop Mode Entry Timing
R
6
0
PREVIOUS DATA
Table 19-4. SIM Registers
Register
SBFCR
R
5
0
SBSR
SRSR
STOP ADDR + 1
STOP + 2
Table 19-4
STOP RECOVERY PERIOD
NEXT OPCODE
R
4
0
STOP + 2
shows the mapping of these registers.
R
3
0
SAME
SP
Access Mode
R
2
0
SAME
User
User
User
SP – 1
Note
BW
SAME
1
0
(1)
SAME
SP – 2
Bit 0
R
0
SIM Registers
SP – 3
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