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The fastest instruction of the µ PD78014, 78014Y Subseries is executed by the CPU clock 4 clock. The relationship
between the CPU clock (f
Table 7-2. Relationship between CPU Clock and Minimum Instruction Execution Time
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CHAPTER 7 CLOCK GENERATOR
) and minimum instruction execution time is as shown in Table 7-2.
CPU
CPU Clock (f
)
Minimum Instruction Execution Time: 4/f
CPU
0.4 µ s
f
X
0.8 µ s
f
/2
X
1.6 µ s
2
f
/2
X
3.2 µ s
f
/2
3
X
6.4 µ s
f
/2
4
X
122 µ s
f
XT
f
= 10.0 MHz, f
= 32.768 kHz
X
XT
f
: Main system clock oscillation frequency
X
f
: Subsystem clock oscillation frequency
XT
CPU
159
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