
ML610Q421/ML610Q422/ML610421User’s Manual
Chapter 28 Power Supply Circuit
28 – 2
28.2 Description of Operation
V
DDL
and V
DDX
become approx. 1.2 V at a system reset.
V
DDL
becomes approx. 1.65 V (Typ.) when high-speed oscillation starts in crystal/ceramic oscillation mode or PLL
oscillation mode or external clock mode. When high-speed oscillation stops, the voltage becomes about 1.2V (Typ.).
V
DDX
becomes approx. 0.6 V (Typ.) after 4096 low-speed oscillation clock (XTCLK) pulses are counted after the
system reset is released. As a result of release of STOP mode (generation of external interrupt), V
DDX
becomes approx.
1.2 V(Typ.) and then approx. 0.6 V (Typ.) after 4096 low-speed oscillation clock (XTCLK) pulses are counted.
Figure 28-2 shows the operation waveforms of the power supply circuit.
Figure 28-2 Operation Waveforms of Power Supply Circuit
Approx. 1.2V
Approx. 1.65V
Approx. 1.2V Approx. 0.6V
RESET_VRX
Power supply for
low-speed oscillation
V
DDX
Power supply for logic
V
DDL
System reset
RESET
_S
Low-speed oscillation
4096-pulse count
Approx. 1.2V
STOP
mode
Generation of
external interrupt
Low-speed oscillation
4096-pulse count
Start of high-speed
oscillation*1
Stop of high-speed
oscillation*1
Approx. 1.2V
Approx. 0.6V
*1: Crystal/ceramic oscillation, PLL oscillation, External clock input mode (500 kHz CR oscillation not included)
Содержание ML610421
Страница 1: ...ML610Q421 ML610Q422 ML610421 User s Manual Issue Date Feb 9 2015 FEUL610Q421 06...
Страница 15: ...Chapter 1 Overview...
Страница 44: ...Chapter 2 CPU and Memory Space...
Страница 49: ...Chapter 3 Reset Function...
Страница 53: ...Chapter 4 MCU Control Function...
Страница 69: ...Chapter 5 Interrupts INTs...
Страница 93: ...Chapter 6 Clock Generation Circuit...
Страница 110: ...Chapter 7 Time Base Counter...
Страница 121: ...Chapter 8 Capture...
Страница 129: ...Chapter 9 1 kHz Timer 1kHzTM...
Страница 135: ...Chapter 10 Timers...
Страница 160: ...Chapter 11 PWM...
Страница 172: ...Chapter 12 Watchdog Timer...
Страница 180: ...Chapter 13 Synchronous Serial Port...
Страница 195: ...Chapter 14 UART...
Страница 216: ...Chapter 15 I2 C Bus Interface...
Страница 231: ...Chapter 16 NMI Pin...
Страница 237: ...Chapter 17 Port 0...
Страница 246: ...Chapter 18 Port 1...
Страница 252: ...Chapter 19 Port 2...
Страница 259: ...Chapter 20 Port 3...
Страница 270: ...Chapter 21 Port 4...
Страница 282: ...Chapter 22 Port A...
Страница 290: ...Chapter 23 Melody Driver...
Страница 304: ...Chapter 24 RC Oscillation Type A D Converter...
Страница 327: ...Chapter 25 Successive Approximation Type A D Converter...
Страница 338: ...Chapter 26 LCD Drivers...
Страница 371: ...Chapter 27 Battery Level Detector...
Страница 378: ...Chapter 28 Power Supply Circuit...
Страница 381: ...Chapter 29 On Chip Debug Function...
Страница 384: ...Appendixes...
Страница 435: ...Revision History...