RL78/G1P
CHAPTER 5 CLOCK GENERATOR
R01UH0895EJ0100 Rev.1.00
119
Nov 29, 2019
5.6.3 CPU clock status transition diagram
Figure 5-14 shows the CPU clock status transition diagram of this product.
Figure 5-14. CPU Clock Status Transition Diagram
Reset release
Power ON
High-speed on-chip oscillator: Woken up
X1 oscillation/EXCLK input: Stops (input port mode)
High-speed on-chip oscillator: Operating
X1 oscillation/EXCLK input: Stops (input port mode)
V
DD
≥
Lower limit of the operating voltage range
(release from the reset state triggered by the LVD circuit or an external reset)
High-speed on-chip oscillator: Stops
X1 oscillation/EXCLK input: Stops
High-speed on-chip oscillator:
Operating
X1 oscillation/EXCLK input: Stops
High-speed on-chip oscillator: Operating
X1 oscillation/EXCLK input: Oscillatable
High-speed on-chip oscillator: Stops
X1 oscillation/EXCLK input: Stops
CPU: High-speed
on-chip oscillator
→
STOP
CPU: High-speed
on-chip oscillator
→
SNOOZE
CPU: High-speed
on-chip oscillator
→
HALT
CPU: X1
oscillation/EXCLK
input
→
STOP
CPU: Operating
with X1 oscillation or
EXCLK input
CPU: X1
oscillation/EXCLK
input
→
HALT
High-speed on-chip oscillator: Selectable by CPU
X1 oscillation/EXCLK input: Operating
High-speed on-chip oscillator: Oscillatable
X1 oscillation/EXCLK input: Operating
CPU: Operating
with high-speed
on-chip oscillator
High-speed on-chip oscillator: Operating
X1 oscillation/EXCLK input: Selectable by CPU
(E)
(G)
(D)
(H)
(F)
(A)
(B)
(C)
Summary of Contents for RL78/G1P
Page 770: ...RL78 G1P R01UH0895EJ0100 ...