mc68hc08qa24 Freescale Semiconductor, Inc, mc68hc08qa24 Datasheet - Page 147

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mc68hc08qa24

Manufacturer Part Number
mc68hc08qa24
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
MC68HC08QA24
Freescale Semiconductor
Wait mode also can be exited by a reset or break. A break interrupt
during wait mode sets the SIM break stop/wait bit, SBSW, in the SIM
break status register (SBSR). If the COP disable bit, COPD, in the
configuration register ($001F) is logic 0, then the computer operating
properly module (COP) is enabled and remains active in wait mode.
Figure 10-13
EXITSTOPWAIT
Note: EXITSTOPWAIT =
CGMXCLK
R/W
IAB
IDB
Note: Previous data can be operand data or the WAIT opcode, depending on the last instruction.
IDB
IAB
RST
IAB
IDB
Figure 10-13. Wait Recovery from Interrupt or Break
$A6
Figure 10-14. Wait Recovery from Internal Reset
WAIT ADDR
System Integration Module (SIM)
$A6
$6E0B
and
$A6
PREVIOUS DATA
Figure 10-12. Wait Mode Entry Timing
$6E0B
$A6
Figure 10-14
RST
$A6
pin or CPU interrupt or break interrupt
WAIT ADDR + 1
$A6
$6E0C
CYCLES
$01
32
NEXT OPCODE
show the timing for WAIT recovery.
$00FF
$0B
CYCLES
32
SAME
$00FE
System Integration Module (SIM)
$6E
SAME
$00FD
RST VCT H
SAME
$00FC
RST VCT L
SAME
Technical Data
145

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