253
Chapter 18 Timebase Counter
5.Operation
5. Operation
This section describes the events that trigger an oscillation stabilization wait and the operation in each case.
5.1 INIT Pin Input
An oscillation stabilization wait is required after power on. As the wait time provided by the initialized timebase
counter is too short, the INIT pin input must be held at the “L” level.
Figure 5-1 Using the Width of the Pin Input to Provide the Oscillation Stabilization Wait Time
(1) Power turned on
(2) Start INIT pin input (Settings initialization reset)
(3) Main clock oscillation starting
(4) INIT pin input (to provide a sufficient time for the main clock oscillation to stabilize)
(5) INIT pin input removed. The timebase counter is initialized and starts counting.
(6) Oscillation stabilization wait time provided by timebase timer/counter (Initial value = minimum value)
(If the INITX pin input (4) is not maintained, the wait time is too short.)
(7) Operation initialization reset, reset cancellation sequence
(8) Main RUN
■
INIT Pin input when main clock running
The device goes to the operation initialization reset (RST) state automatically after the minimum oscillation
stabilization wait time elapses.
(6)
(4)
(7)
(3)
INIT pin input
Time-base
counter count
Time
000h
Example main clock startup
(2)
2 (Bit 0 output)
1
Provide a sufficient oscillation
stabilization wait time
(5)
Settings initialization
(INIT)
Operation initialization (SRST)
Reset cancellation sequence
Oscillation stabilization wait reset
Undefined
State transition
Main RUN
Using the INIT pin input to trigger
a reset and provide the oscillation
stabilization wait time for the
main clock
2
1
(1)
Example power-on Vcc
(2)
(8)
(5)
Initial value of oscillation
stabilization wait time is too short
Содержание FR Family FR60 Lite
Страница 2: ...FUJITSU LIMITED ...
Страница 3: ...FR60 32 BIT MICROCONTROLLER MB91460 Series User s Manual ...
Страница 15: ...xi ...
Страница 16: ...xii ...
Страница 38: ...22 Chapter 2 MB91460 Rev A Rev B Overview 4 Block Diagram ...
Страница 128: ...112 Chapter 4 CPU Architecture 9 Addressing ...
Страница 153: ...137 Chapter 8 Device State Transition 3 State Transition Diagram ...
Страница 154: ...138 Chapter 8 Device State Transition 3 State Transition Diagram ...
Страница 169: ...153 Chapter 9 Reset 10 Caution ...
Страница 170: ...154 Chapter 9 Reset 10 Caution ...
Страница 180: ...164 Chapter 10 Standby 7 Q A ...
Страница 182: ...166 Chapter 10 Standby 8 Caution ...
Страница 199: ...183 Chapter 12 Instruction Cache 2 Main body structure Figure 2 3 I Cache Address Map ...
Страница 200: ...184 Chapter 12 Instruction Cache 2 Main body structure Figure 2 4 I Cacheable Area ...
Страница 222: ...206 Chapter 13 Clock Control 8 Caution ...
Страница 232: ...216 Chapter 14 PLL Interface 7 Caution ...
Страница 236: ...220 Chapter 15 CAN Clock Prescaler 3 Registers ...
Страница 288: ...272 Chapter 19 Timebase Timer 8 Caution ...
Страница 314: ...298 Chapter 22 Main Oscillation Stabilisation Timer 8 Caution ...
Страница 326: ...310 Chapter 23 Sub Oscillation Stabilisation Timer 8 Caution ...
Страница 348: ...332 Chapter 25 External Interrupt 8 Caution ...
Страница 398: ...382 Chapter 26 DMA Controller 6 DMA External Interface ...
Страница 402: ...386 Chapter 27 Delayed Interrupt 8 Caution ...
Страница 412: ...396 Chapter 28 Bit Search 8 Caution ...
Страница 521: ...505 Chapter 30 I O Ports 3 Port Register Settings ...
Страница 522: ...506 Chapter 30 I O Ports 3 Port Register Settings ...
Страница 549: ...533 Chapter 31 External Bus 2 External Bus Interface Registers is set to the high impedance state ...
Страница 574: ...558 Chapter 31 External Bus 4 Endian and Bus Access Byte Access ...
Страница 628: ...612 Chapter 31 External Bus 13 Notes on Using the External Bus Interface ...
Страница 706: ...690 Chapter 33 I2C Controller 4 Programming Flow Charts ...
Страница 748: ...732 Chapter 34 CAN Controller 4 CAN Application ...
Страница 762: ...746 Chapter 35 Free Run Timer 8 Caution ...
Страница 790: ...774 Chapter 37 Output Compare 8 Caution ...
Страница 838: ...822 Chapter 39 Programmable Pulse Generator 8 Caution ...
Страница 850: ...834 Chapter 40 Pulse Frequency Modulator 4 PFM Operation and Setting ...
Страница 886: ...870 Chapter 42 Sound Generator 3 Registers ...
Страница 900: ...884 Chapter 43 Stepper Motor Controller 4 Caution ...
Страница 939: ...923 Chapter 47 LCD Controller 3 Configuration Figure 3 2 Register List ...
Страница 943: ...927 Chapter 47 LCD Controller 4 Registers Correspondence between VRAM and Common Segment Pins ...
Страница 964: ...948 Chapter 48 Clock Monitor 8 Caution ...
Страница 994: ...978 Chapter 51 Low Voltage Reset Interrupt 3 Registers ...
Страница 998: ...982 Chapter 52 Regulator Control 3 Registers ...
Страница 1008: ...992 Chapter 53 Fixed Mode Reset Vector BOOT ROM 5 Bootloader Update Strategy ...
Страница 1024: ...1008 Chapter 54 Flash Memory 8 Caution ...
Страница 1032: ...1016 Chapter 55 Flash Security 4 Register ...
Страница 1034: ...1018 Chapter 56 Electrical Specification ...
Страница 1035: ...FR60 MB91460 Series Hardware Manual European Microcontroller Design Centre Author MBo ...
Страница 1036: ......
Страница 1038: ......