MC68HC05X4 Datasheet, PDF (121/156 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
16-Bit Programmable Timer
Timer state diagrams
occurred during the STOP period. If the device is reset to exit STOP
mode, then no input capture flag or data remains, even if a valid input
capture edge occurred.
Timer state diagrams
The relationships between the internal clock signals, the counter
contents and the status of the flag bits are shown in the following
diagrams. It should be noted that the signals labelled ‘internal’
(processor clock, timer clocks and reset) are not available to the user.
Internal
processor clock
Internal
reset
Internal
timer clocks
 _T00


T01
 ^T10
 ^T11
16-bit
counter
$FFFC
$FFFD
$FFFE
$FFFF
External reset
or end of POR
Note: The counter and timer control registers are the only ones affected by power-on or external reset.
Figure 12. Timer state timing diagram for reset
13-ptimer
16-Bit Programmable Timer
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MC68HC05X4 Rev 1.0