upd78f0124m6gba1-8et Renesas Electronics Corporation., upd78f0124m6gba1-8et Datasheet - Page 126
upd78f0124m6gba1-8et
Manufacturer Part Number
upd78f0124m6gba1-8et
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0124M6GBA1-8ET.pdf
(545 pages)
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5.8.2 Switching from X1 input clock to internal oscillation clock
126
Internal oscillation
Note Required only when “Can be stopped by software” is selected for the internal oscillator by a mask option.
clock operation
clock operation
X1 input
Figure 5-15. Switching from X1 Input Clock to Internal Oscillation Clock (Flowchart)
Register setting
clock operation
in X1 input
RSTOP = 0
Yes: RSTOP = 1
CHAPTER 5 CLOCK GENERATOR
User’s Manual U16315EJ3V1UD
Internal oscillation clock operation
PCC.7 (MCC) = 0
PCC.4 (CSS) = 0
(RSTOP) = 1?
MCM = 03H
MCM0 ← 0
RCM.0
No: RSTOP = 0
Note
; X1 oscillation
; X1 input clock or internal oscillation clock
; X1 input clock operation
; Internal oscillator oscillating?
; Internal oscillation clock operation
MCM.1 (MCS) is changed from 1 to 0
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