upd78f0148m1gka1-9eu Renesas Electronics Corporation., upd78f0148m1gka1-9eu Datasheet - Page 149

• Manufacturer Part Number: upd78f0148m1gka1-9eu
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

Operation
Mode
Reset
STOP
HALT
Notes 1.
Caution The RSTOP setting is valid only when “Can be stopped by software” is set for internal oscillator by
Remark MSTOP: Bit 7 of the main OSC control register (MOC)
Status
2.
3.
4.
a mask option.
MCC:
RSTOP: Bit 0 of the internal oscillation mode register (RCM)
MCM0:
Caution The RSTOP setting is valid only when “Can be stopped by software” is set for internal
MSTOP = 1
MSTOP = 0
MCC = 1
MCC = 0
Note Setting X1 oscillator oscillating/stopped differs depending on the CPU clock used.
Remark MSTOP: Bit 7 of the main OSC control register (MOC)
When “Cannot be stopped” is selected for internal oscillator by a mask option.
When “Can be stopped by software” is selected for internal oscillator by a mask option.
Operates using the CPU clock at STOP instruction execution.
Operates using the CPU clock at HALT instruction execution.
MSTOP = 0
Stopped
Oscillating
MCC = 0
• When the internal oscillation clock is used as the CPU clock: Set using the MSTOP bit
• When the subsystem clock is used as the CPU clock: Set using the MCC bit
Table 6-3. Relationship Between Operation Clocks in Each Operation Status
Note
Note
Bit 7 of the processor clock control register (PCC)
Bit 0 of the main clock mode register (MCM)
oscillator by a mask option.
X1 Oscillator
Note
Note
MCC:
RSTOP: Bit 0 of the internal oscillation mode register (RCM)
Table 6-4. Oscillation Control Flags and Clock Oscillation Status
RSTOP = 0
RSTOP = 1
RSTOP = 0
RSTOP = 1
RSTOP = 0
RSTOP = 1
RSTOP = 0
RSTOP = 1
MSTOP = 1
Stopped
MCC = 1
Bit 7 of the processor clock control register (PCC)
Stopped
Oscillating Oscillating Stopped
Stopped
Setting prohibited
Oscillating
Stopped
Oscillating
Note 1
CHAPTER 6 CLOCK GENERATOR
User’s Manual U15947EJ3V1UD
Internal Oscillator
RSTOP = 0 RSTOP = 1
X1 Oscillator
Note 2
Subsystem
Oscillating
Oscillator
Oscillating
Oscillating
Stopped
Oscillating
Stopped
Oscillating
Stopped
Clock
Internal Oscillator
CPU Clock
Internal
oscillation
Note 3
Note 4
Release
After
Supplied to Peripherals
MCM0 = 0 MCM0 = 1
Stopped
Stopped
Internal
oscillation
Prescaler Clock
X1
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