upd78f0103hmca1-5a4-a Renesas Electronics Corporation., upd78f0103hmca1-5a4-a Datasheet - Page 98

• Manufacturer Part Number: upd78f0103hmca1-5a4-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

Notes 1.
Caution The RSTOP setting is valid only when “Can be stopped by software” is set for the internal oscillator
Remark MSTOP: Bit 7 of the main OSC control register (MOC)
98
Operation
Mode
Reset
STOP
HALT
Status
2.
3.
4.
by the option byte.
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 the internal
Remark MSTOP: Bit 7 of the main OSC control register (MOC)
MSTOP = 1
MSTOP = 0
When “Cannot be stopped” is selected for the internal oscillator by the option byte.
When “Can be stopped by software” is selected for the internal oscillator by the option byte.
Operates using the CPU clock at STOP instruction execution.
Operates using the CPU clock at HALT instruction execution.
Stopped
Oscillating
High-Speed System Clock
MSTOP = 0
Table 5-3. Relationship Between Operation Clocks in Each Operation Status
Bit 0 of the main clock mode register (MCM)
oscillator by the option byte.
RSTOP: Bit 0 of the internal oscillation mode register (RCM)
Oscillator
Table 5-4. Oscillation Control Flags and Clock Oscillation Status
RSTOP = 0
RSTOP = 1
RSTOP = 0
RSTOP = 1
Stopped
MSTOP = 1
Stopped
Setting prohibited
Oscillating
High-Speed System Clock Oscillator
Oscillating
Stopped
CHAPTER 5 CLOCK GENERATOR
Note 1
User’s Manual U16846EJ3V0UD
Internal Oscillator
Oscillating
RSTOP = 0
Note 2
Stopped
RSTOP = 1
Oscillating
Oscillating
Stopped
Internal
oscillation
Note 3
Note 4
CPU Clock
Release
Internal Oscillator
After
Stopped
Stopped
Internal
oscillation
Prescaler Clock Supplied to
MCM0 = 0
Peripherals
High-speed
system clock
MCM0 = 1