Fujitsu FR81S Manual Do Utilizador
CHAPTER 25: 16-BIT OUTPUT COMPARE
2. Features
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: 16-BIT OUTPUT COMPARE
FUJITSU SEMICONDUCTOR CONFIDENTIAL
4
2. Features
This section explains the features of the 16-bit output compare.
Functions of 16-bit Output Compare
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16-bit output compare consists of six 16-bit compare registers (with selectable buffer registers),
compare output latch, 3 compare control registers, and compare mode control registers. When the 16-bit
free-run timer value matches a compare register, an interrupt is generated and the output level is
inverted.
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The 6 compare registers can be operated independently. An output pin and an interrupt flag correspond
to each of the compare registers.
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Two compare registers can be used as a pair to control output pins. Two compare registers combined as
a pair can be used to invert the output pins.
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The initial values for output pins can be set.
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An interrupt can be generated when an output compare register matches the 16-bit free-run timer.
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Any desired free-run timer channel can be set for each compare unit.
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Any of free-run timers 0 through 2 can be selected as the input for output compare 0 through 5 among
output compare 6 channels. This can be set at the free-run timer selection register (FRS0). See "Free-run
Timer Selection Register: FRS" of "CHAPTER: 16-BIT FREE-RUN TIMER" for details.
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The compare output for an output compare can be output from the waveform generator output pin.
The PPG timer's GATE signal output can be also controlled. See "CAHPTER: WAVEFORM
GENERATOR" for details.
MB91520 Series
MN705-00010-1v0-E
959