Datasheet

M68HC12B Family Data Sheet, Rev. 9.1
Freescale Semiconductor 321
Control Timing
Figure 19-6. Power-On and External Reset Timing Diagram
t
PCSU
INTERNAL
MODA, MODB
ECLK
EXTAL
V
DD
RESET
4098 t
cyc
FREE
FFFEFFFE
3RD1ST 2ND
FREE
FFFEFFFEFFFE
t
MPH
PW
RSTL
t
MPS
ADDRESS
PIPE PIPE
PIPE
1ST
EXEC
3RD
PIPE
2ND
PIPE
1ST
PIPE
1ST
EXEC
Note: Reset timing is subject to change.