ML620Q503/Q504
User’s Manual
Chapter 29 LDD circuit
FEUL620Q504 29-1
29 LLD circuit
29.1
General Description
LLD circuit monitors Power supply Voltage level. When Power supply Voltage falls than the thresholdvoltage,
LLD reset this LSI.
29.1.1 Features
•
Judgement Voltage
:
1.8V
±
0.2V
•
generate LSI reset
•
Selectable LLD enable/disable
29.2
Description of resister
Control LLD validation by resister setting.
LLD is invalidated initially.
LLD can be validated by setting block control resister 45(BLKCON45) DLLD bit to “0”.
29.3
Description of operation
LLD circuit is controlled by DLLD bit of block control register 45(BLKCON45).
This circuit compares the power supply voltage with the threshold voltage. If the power supply voltage is below
the threshold voltage, LLD generate reset.
See DC characteristics(LLD) of AppendixC Electrical Characteristics for details about the threshold voltage.
Summary of Contents for LAPIS SEMICONDUCTOR ML620Q503
Page 2: ...ML620Q503 Q504 User s Manual Issue Date Apr 16 2015 FEUL620Q504 01...
Page 18: ...Chapter 1 Overview...
Page 32: ...Chapter 2 CPU and Memory Space...
Page 44: ...Chapter 3 Reset Function...
Page 50: ...Chapter 4 Power Management...
Page 70: ...Chapter 5 Interrupts...
Page 134: ...Chapter 6 Clock Generation Circuit...
Page 161: ...Chapter 7 Time Base Counter...
Page 170: ...Chapter 8 Timers...
Page 183: ...Chapter 9 Function Timer FTM...
Page 231: ...Chapter 10 Watchdog Timer...
Page 239: ...Chapter 11 Synchronous Serial Port SSIO...
Page 251: ...Chapter 12 Synchronous Serial Port with FIFO SSIOF...
Page 283: ...Chapter 13 UART...
Page 303: ...Chapter 14 UART with FIFO UARTF...
Page 327: ...Chapter 15 I2 C Bus Interface...
Page 344: ...Chapter 16 Port XT...
Page 350: ...Chapter 17 Port 0...
Page 361: ...Chapter 18 Port 1...
Page 368: ...Chapter 19 Port2...
Page 379: ...Chapter 20 Port 3...
Page 395: ...Chapter 21 Port 4...
Page 410: ...Chapter 22 Port 5...
Page 426: ...Chapter 23 Melody Driver...
Page 439: ...Chapter 24 RC Oscillation type A D Converter RC ADC...
Page 462: ...Chapter 25 Successive Approximation Type A D Converter SA ADC...
Page 479: ...Chapter 26 Analog Comparator...
Page 489: ...Chapter 27 Flash Memory Control...
Page 505: ...Chapter 28 Voltage Level Supervisor VLS...
Page 517: ...Chapter 29 LLD circuit...
Page 519: ...Chapter 30 On Chip Debug Function...
Page 522: ...Appendixes...
Page 552: ...Revision History...