mc68hc908ap8a Freescale Semiconductor, Inc, mc68hc908ap8a Datasheet - Page 111
mc68hc908ap8a
Manufacturer Part Number
mc68hc908ap8a
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908AP8A.pdf
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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.
7.7 SIM Registers
The SIM has three memory-mapped registers:
Freescale Semiconductor
•
•
•
INT/BREAK
SIM Break Status Register
SIM Reset Status Register
SIM Break Flag Control Register
ICLK
IAB
To minimize stop current, all pins configured as inputs should be driven to
a logic 1 or logic 0.
CPUSTOP
NOTE: Previous data can be operand data or the STOP opcode, depending on the last
R/W
IDB
IAB
instruction.
Figure 7-19. Stop Mode Recovery from Interrupt
STOP ADDR
STOP +1
Figure 7-18. Stop Mode Entry Timing
MC68HC908AP A-Family Data Sheet, Rev. 3
PREVIOUS DATA
(SBSR) — $FE00
(SRSR) — $FE01
(SBFCR) — $FE03
STOP ADDR + 1
STOP + 2
STOP RECOVERY PERIOD
NOTE
NEXT OPCODE
Figure 7-18
STOP + 2
SAME
shows stop mode entry timing.
SP
SAME
SP – 1
SAME
SAME
SP – 2
SIM Registers
SP – 3
111
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