mc68hc705v12 Freescale Semiconductor, Inc, mc68hc705v12 Datasheet - Page 93

• Manufacturer Part Number: mc68hc705v12
• Description: M68hc05-based Mcu Hc05 Freescale Semiconductor
• Manufacturer: Freescale Semiconductor, Inc

9.1 Contents
9.2 Introduction
MC68HC705V12
Advance Information — MC68HC705V12
NOTE:
—
Rev. 3.0
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
The timer consists of a 16-bit, free-running counter driven by a fixed
divide-by-four prescaler. This timer can be used for many purposes,
including input waveform measurements while simultaneously
generating an output waveform. Pulse widths can vary from several
microseconds to many seconds. See
Because the timer has a 16-bit architecture, each specific functional
segment (capability) is represented by two registers. These registers
contain the high and low bytes of that functional segment. Access of the
high byte inhibits that specific timer function until the low byte is also
accessed.
The I bit in the condition code register (CCR) should be set while
manipulating both the high and low byte registers of a specific timer
function to ensure that an interrupt does not occur.
Freescale Semiconductor, Inc.
For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Timer Counter Registers $18 $19 and $1A $1B. . . . . . . . . . .94
Output Compare Register $16 $17 . . . . . . . . . . . . . . . . . . . . .96
Input Capture Register $14 $15. . . . . . . . . . . . . . . . . . . . . . . .97
16-Bit Timer Control Register . . . . . . . . . . . . . . . . . . . . . . . . . .98
16-Bit Timer Status Register. . . . . . . . . . . . . . . . . . . . . . . . . . .99
16-Bit Timer during Wait Mode . . . . . . . . . . . . . . . . . . . . . . . .100
16-Bit Timer during Stop Mode. . . . . . . . . . . . . . . . . . . . . . . .100
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16-Bit Timer
Section 9. 16-Bit Timer
Figure
9-1.
Advance Information