mc68hc908gp32 Freescale Semiconductor, Inc, mc68hc908gp32 Datasheet - Page 171

• Manufacturer Part Number: mc68hc908gp32
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

The SIM counter is held in reset from the execution of the STOP instruction until the beginning of stop
recovery. It is then used to time the recovery period.
14.7 SIM Registers
The SIM has three memory-mapped registers.
Freescale Semiconductor
CGMXCLK
INT/BREAK
IAB
To minimize stop current, all pins configured as inputs should be driven to
a logic 1 or logic 0.
Note : Previous data can be operand data or the STOP opcode, depending
CPUSTOP
Address
R/W
IDB
IAB
$FE00
$FE01
$FE03
Figure 14-19. Stop Mode Recovery from Interrupt or Break
on the last instruction.
STOP ADDR
STOP +1
Figure 14-18. Stop Mode Entry Timing
PREVIOUS DATA
MC68HC908GP32 Data Sheet, Rev. 10
Table 14-4. SIM Registers
Register
SBFCR
STOP ADDR + 1
SBSR
SRSR
STOP + 2
Table 14-4
STOP RECOVERY PERIOD
NOTE
NEXT OPCODE
Figure 14-18
STOP + 2
shows the mapping of these registers.
SAME
SP
shows stop mode entry timing.
Access Mode
SAME
User
User
User
SP – 1
SAME
SAME
SP – 2
SIM Registers
SP – 3
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