MC68HC908MR8 Datasheet, PDF (105/372 Pages) Motorola, Inc – Microcontrollers

System Integration Module (SIM)
Low-Power Mode
is active or inactive in wait mode. Some modules can be programmed to
be active in wait mode.
Wait mode can also 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 is logic 0, then the computer operating properly
module (COP) is enabled and remains active in wait mode.
Figure 7-13 and Figure 7-14 show the timing for wait recovery.
IAB
$6E0B
$6E0C $00FF $00FE $00FD $00FC
IDB $A6 $A6
$A6
$01
$0B
$6E
EXITSTOPWAIT
Note: EXITSTOPWAIT = RST pin or CPU interrupt or break interrupt
Figure 7-13. Wait Recovery from Interrupt or Break
IAB
$6E0B
32
CYCLES
32
CYCLES
RST VCT H RST VCT L
IDB $A6 $A6
$A6
RST
CGMXCLK
Figure 7-14. Wait Recovery from Internal Reset
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
System Integration Module (SIM)
Technical Data
105