r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 10
r5f21368sdfp
Manufacturer Part Number
r5f21368sdfp
Description
Renesas Mcu R8c Family / R8c/3xt-a Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5F21368SDFP.pdf
(760 pages)
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Company:
Part Number:
r5f21368sdfp#V0
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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8.
9.
8.1
8.2
8.3
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
8.2.1
8.2.2
8.2.3
8.2.4
8.2.5
8.2.6
8.2.7
8.3.1
8.3.2
8.3.3
9.2.1
9.2.2
9.2.3
9.2.4
9.2.5
9.2.6
9.2.7
9.2.8
9.2.9
9.2.10
9.4.1
9.4.2
9.6.1
9.6.2
9.6.3
9.6.4
9.6.5
9.6.6
9.6.7
9.6.8
9.6.9
9.6.10
9.7.1
9.8.1
9.8.2
Watchdog Timer .................................................................................................................................. 71
Clock Generation Circuit ..................................................................................................................... 81
Overview ........................................................................................................................................................ 71
Registers ......................................................................................................................................................... 73
Operations ...................................................................................................................................................... 78
Overview ........................................................................................................................................................ 81
Registers ......................................................................................................................................................... 84
XIN Clock ...................................................................................................................................................... 94
On-Chip Oscillator Clocks ............................................................................................................................. 95
XCIN Clock ................................................................................................................................................... 96
CPU Clock and Peripheral Functional Clock ................................................................................................. 97
Oscillation Stop Detection Function .............................................................................................................. 99
Notes on Clock Generation Circuit .............................................................................................................. 102
Reset Interrupt Select Register (RISR) ...................................................................................................... 74
Watchdog Timer Reset Register (WDTR) ................................................................................................. 74
Watchdog Timer Start Register (WDTS) ................................................................................................... 75
Watchdog Timer Control Register (WDTC) .............................................................................................. 75
Count Source Protection Mode Register (CSPR) ...................................................................................... 75
Option Function Select Register 2 (OFS2) ................................................................................................ 76
Option Function Select Register (OFS) ..................................................................................................... 77
Items Common to Multiple Modes ............................................................................................................ 78
When Count Source Protection Mode is Disabled .................................................................................... 79
When Count Source Protection Mode is Enabled ..................................................................................... 80
System Clock Control Register 0 (CM0) .................................................................................................. 85
System Clock Control Register 1 (CM1) .................................................................................................. 86
Oscillation Stop Detection Register (OCD) .............................................................................................. 87
System Clock Control Register 3 (CM3) .................................................................................................. 88
System Clock Control Register 4 (CM4) .................................................................................................. 89
Clock Prescaler Reset Flag (CPSRF) ........................................................................................................ 90
High-Speed On-Chip Oscillator Control Register 0 (FRA0) .................................................................... 90
High-Speed On-Chip Oscillator Control Register 2 (FRA2) .................................................................... 91
Voltage Detection Register 2 (VCA2) ....................................................................................................... 92
I/O Function Pin Select Register (PINSR) ................................................................................................ 93
Low-Speed On-Chip Oscillator Clock ...................................................................................................... 95
High-Speed On-Chip Oscillator Clock ...................................................................................................... 95
System Clock ............................................................................................................................................. 97
CPU Clock ................................................................................................................................................. 97
Peripheral Function Clocks (f1, f2, f4, f8, and f32) .................................................................................. 97
fOCO ......................................................................................................................................................... 97
fHOCO ....................................................................................................................................................... 97
fHOCO-F ................................................................................................................................................... 97
fLOCO ....................................................................................................................................................... 97
fOCO128 ................................................................................................................................................... 98
fC1, fC2, and fC32 .................................................................................................................................... 98
fLOCOWDT .............................................................................................................................................. 98
How to Use Oscillation Stop Detection Function ...................................................................................... 99
Oscillation Stop Detection Function ........................................................................................................ 102
Oscillation Circuit Constants ................................................................................................................... 102
A - 3
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