mc68hc908sr12 Freescale Semiconductor, Inc, mc68hc908sr12 Datasheet - Page 205
mc68hc908sr12
Manufacturer Part Number
mc68hc908sr12
Description
M68hc08 Microcontrollers Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908SR12.pdf
(404 pages)
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12.1 Contents
12.2 Introduction
12.3 Features
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
Data Sheet — MC68HC908SR12•MC68HC08SR12
12.2
12.3
12.4
12.5
12.6
12.7
12.7.1
12.7.2
This section describes the timebase module (TBM). The TBM will
generate periodic interrupts at user selectable rates using a counter
clocked by the selected OSCCLK clock from the oscillator module. This
TBM version uses 18 divider stages, eight of which are user selectable.
Features of the TBM module include:
•
•
Software programmable 8s, 4s, 2s, 1s, 2ms, 1ms, 0.5ms, and
0.25ms periodic interrupt using 32.768-kHz OSCCLK clock
User selectable oscillator clock source enable during stop mode to
allow periodic wake-up from stop
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206
Timebase Register Description. . . . . . . . . . . . . . . . . . . . . . . . 207
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209
Section 12. Timebase Module (TBM)
Timebase Module (TBM)
Data Sheet
205
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