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R01UH0336EJ0102 Rev.1.02
Page 257 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 7 Clock Generation
7.1 Overview of Clock Generation
Functional
overview
Clock generation involves the following controls and functions.
• Oscillator
– External resonator: 8 MHz (
PD70F4155), 16 MHz (
PD70F4154)
• Clock monitoring (CLMA0 to CLMA2) blocks
– CLMA0 monitors the WDTCLKI clock and generates reset signals.
This product does not support the generation of interrupt-request signals
by CLMA0.
– CLMA1 monitors the internal system clock and generates reset and
interrupt-request signals.
– CLMA2 monitors the internal oscillator and generates reset and interrupt-
request signals.
• Clock output: The frequency of the signal output on the CLKOUT pin is
adjustable.
Note
For the output frequencies, their allowed range, and other parameters, refer to
Section 6.5, Option-Setting Bytes, and to the Data Sheet.