Fujitsu MB91191 ユーザーズマニュアル

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CHAPTER 18  10-bit General-purpose Prescaler

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Update mode operation by both edges of PPG output

Under this mode, exactly the same operation as the update mode by rewriting the data register is carried out

except for detecting both edges of the PPG output and executing load requests per edge. When this mode is

selected, no load request is generated by rewriting the data register.

Data update
disable period

CLK

Data Register Value

Write STB

xx

nn

yy

xx

nn

yy

Load Request

Load Data Latch

Load Timing