mc68hc05jb4p Freescale Semiconductor, Inc, mc68hc05jb4p Datasheet - Page 66
mc68hc05jb4p
Manufacturer Part Number
mc68hc05jb4p
Description
Mc68hc705jb4 Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC05JB4P.pdf
(134 pages)
- Current page: 66 of 134
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GENERAL RELEASE SPECIFICATION
9.7
9.8
TIMER OPERATION DURING WAIT MODE
During WAIT mode the 16-bit timer continues to operate normally and may gener-
ate an interrupt to trigger the MCU out of the WAIT mode.
TIMER OPERATION DURING STOP MODE
When the MCU enters the STOP mode the free-running counter stops counting
(the internal processor clock is stopped). It remains at that particular count value
until the STOP mode is exited by applying a low signal to the IRQ pin, at which
time the counter resumes from its stopped value as if nothing had happened. If
STOP mode is exited via an external reset (logic low applied to the RESET pin)
the counter is forced to $FFFC.
If a valid input capture edge occurs at the PB0/TCAP pin during the STOP mode
the input capture detect circuitry will be armed. This action does not set any flags
or “wake up” the MCU, but when the MCU does “wake up” there will be an active
input capture flag (and data) from the first valid edge. If the STOP mode is exited
by an external reset, no input capture flag or data will be present even if a valid
input capture edge was detected during the STOP mode.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
February 24, 1999
16-BIT TIMER
REV
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