MC68HC05T16 Datasheet, PDF (50/128 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit

5
INTERNAL
PROCESSOR
CLOCK
INTERNAL
RESET
T00
INTERNAL ^T01
TIMER
CLOCKS _T10
T11
COUNTER
(16 BIT)
$FFFC
$FFFD
$FFFE
RESET
(external or end of POR)
Notes: RESET affects only the Counter register and Timer Control register.
Figure 5-2 Timer State Timing Diagram for Reset
INTERNAL
PROCESSOR
CLOCK
T00
T01
INTERNAL
TIMER
CLOCKS _T10
T11
COUNTER
(16 BIT)
$F123
$F124
$F125
$F126
$FFFF
$F127
INPUT
EDGE
INTERNAL
CAPTURE
LATCH
(SEE NOTE)
INPUT
CAPTURE
REGISTER
$????
$F125
INPUT
CAPTURE
FLAG
Note: If the input edge occurs in the shaded area from one timer state T10 to the other timer state T10
the input capture flag is set during the next state T11.
MOTOROLA
5-8
Figure 5-3 Timer State Timing Diagram for Input Capture
TIMERS
TPG
MC68HC05T16