s908qc16vdse Freescale Semiconductor, Inc, s908qc16vdse Datasheet - Page 166
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s908qc16vdse
Manufacturer Part Number
s908qc16vdse
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.S908QC16VDSE.pdf
(274 pages)
- Current page: 166 of 274
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System Integration Module (SIM)
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.
Figure 14-18
14.8 SIM Registers
The SIM has three memory mapped registers.
166
ADDRESS BUS
INTERRUPT
BUSCLKX4
ADDRESS BUS
NOTE: Previous data can be operand data or the STOP opcode, depending on the last instruction.
shows the stop mode recovery time from interrupt or break
To minimize stop current, all pins configured as inputs should be driven to
a logic 1 or logic 0.
DATA BUS
CPUSTOP
MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 4
R/W
Figure 14-18. Stop Mode Recovery from Interrupt
Address
STOP ADDR
$FE00
$FE01
$FE03
STOP +1
Figure 14-17. Stop Mode Entry Timing
PREVIOUS DATA
Table 14-4. SIM Registers
STOP ADDR + 1
Register
SRSR
BFCR
BSR
Table 14-4
STOP + 2
NOTE
STOP RECOVERY PERIOD
NEXT OPCODE
Figure 14-17
STOP + 2
shows the mapping of these registers.
SAME
Access Mode
shows stop mode entry timing and
User
User
User
SP
SAME
SP – 1
SAME
SAME
Freescale Semiconductor
SP – 2
SP – 3
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