MMC2107 - Freescale Semiconductor

Freescale Semiconductor, Inc.
Programmable Interrupt Timer Modules (PIT1 and PIT2)
Modes of Operation
14.4 Modes of Operation
This subsection describes the three low-power modes and the debug
mode.
14.4.1 Wait Mode
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14.4.2 Doze Mode
14.4.3 Stop Mode
14.4.4 Debug Mode
In wait mode, the PIT module continues to operate normally and can be
configured to exit the low-power mode by generating an interrupt
request.
In doze mode with the PDOZE bit set in the PIT control and status
register (PCSR), PIT module operation stops. In doze mode with the
PDOZE bit clear, doze mode does not affect PIT operation. When doze
mode is exited, PIT operation continues from the state it was in before
entering doze mode.
In stop mode, the system clock is absent, and PIT module operation
stops.
In debug mode with the PDBG bit set in PCSR, PIT module operation
stops. In debug mode with the PDBG bit clear, debug mode does not
affect PIT operation. When debug mode is exited, PIT operation
continues from the state it was in before entering debug mode, but any
updates made in debug mode remain.
14.5 Signals
The PIT module has no off-chip signals.
MMC2107 – Rev. 2.0
Technical Data
MOTOROLA Programmable Interrupt Timer Modules (PIT1 and PIT2) 283
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