mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 748

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

Features
34.2.1 Block Diagram
The block diagram for the modulo timer module is shown in the following figure.
34.2.2 Modes of Operation
This section defines MTIM16 operation in stop, wait, and background debug modes.
34.2.2.1 MTIM16 in Wait Mode
The MTIM16 continues to run in wait mode if enabled prior to the execution of the
WAIT instruction. The timer overflow interrupt brings the MCU out of wait mode if it is
enabled. For lowest possible current consumption, the MTIM16 should be stopped by
software if it is not needed as an interrupt source during wait mode.
34.2.2.2 MTIM16 in Stop Modes
The MTIM16 is disabled in all stop modes, regardless of the settings before executing the
STOP instruction. Therefore, the MTIM16 cannot be used as a wakeup source from any
stop mode.
Upon waking from very low-power stop modes, the MTIM16 enters its reset state.
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BUSCLK
XCLK
TCLK
INTERRUPT
• Modulo compare matched can be an output
REQUEST
MTIM16
• Clock source divide by 1, 2, 4, 8, 16, 32, 64, 128, or 256
Figure 34-1. Modulo Timer (S08MTIM16) Block Diagram
SYNC
TOF
TOIE
MCF51JF128 Reference Manual, Rev. 2, 03/2011
SOURCE
SELECT
CLOCK
CLKS
AND SELECT
PRESCALE
DIVIDE BY
Preliminary
PS
16-BIT COMPARATOR
16-BIT COUNTER
16-BIT MODULO
(MTIMxMOD)
(MTIMxCNT)
Freescale Semiconductor, Inc.
TRST
TSTP