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Flash
MCU(HMS39C7092)
Watchdog
Timer
89
The
Interval
Timer
Mode
To
use
the
WDT
as
an
interval
timer,
clear
WT/nIT
to
0
and
set
TMEN
to
1.
A
watchdog
timer
interrupt
(
WDT
Interrupt
)
is
generated
each
time
the
timer
counter
overflows.
This
function
can
be
used
to
generate
interval
timer
interrupts
at
regular
intervals.
WTCNT
value
Time
0x00
0xFF
ITOVF
=
1
WDT
Interrupt
generated
TMEN
=
1
WT/nIT
=
0
Figure
7.3
Operation
in
the
Interval
Timer
Mode
7.3.1
Timing
of
Setting
and
Clearing
the
Overflow
Flag
Timing
of
setting
the
overflow
flag
In
the
interval
timer
mode
when
the
WTCNT
overflows,
the
ITOVF
flag
is
set
to
1
and
watchdog
timer
interrupt
(
WDT
Interrupt
)
is
requested.
In
the
watchdog
timer
mode
when
the
WTCNT
overflows,
the
WTOVF
bit
of
the
SR
is
set
to
1
and
a
WDTOUT
signal
is
output.
When
RSTEN
bit
is
set
to
1,
WTCNT
overflow
enables
an
internal
reset
signal
to
be
generated
for
the
entire
chip.
Timing
of
clearing
the
overflow
flag
When
the
Reset
Status
Register
(WRSR)
is
read,
the
overflow
flag
is
cleared.
Содержание HMS39C7092
Страница 1: ...HMS39C7092 32Bit Embedded Flash MCU User s Manual Version 1 2...
Страница 11: ...Flash MCU HMS39C7092 11...
Страница 12: ...Flash MCU HMS39C7092 12...
Страница 13: ...Flash MCU HMS39C7092 Introduction 13 Chapter 1 Introduction...
Страница 27: ...Flash MCU HMS39C7092 ARM7TDMI Core 27 Chapter 2 ARM7TDMI Core...
Страница 39: ...Flash MCU HMS39C7092 ARM7TDMI Core 39 2 4 4 ARM Instructions Refer to ARM7TDMI Datasheet ARM DDI 0029E...
Страница 40: ...BUS Controller Flash MCU HMS39C7092 40...
Страница 41: ...Flash MCU HMS39C7092 BUS Controller 41 Chapter 3 BUS Controller...
Страница 59: ...Flash MCU HMS39C7092 MCU controller 59 Chapter 4 MCU Controller...
Страница 67: ...Flash MCU HMS39C7092 Power Management Unit 67 Chapter 5 Power Management Unit...
Страница 77: ...Flash MCU HMS39C7092 Interrupt controller 77 Chapter 6 The Interrupt Controller...
Страница 85: ...Flash MCU HMS39C7092 Watchdog Timer 85 Chapter 7 Watchdog Timer...
Страница 98: ...Watchdog Timer Flash MCU HMS39C7092 98...
Страница 99: ...Flash MCU HMS39C7092 General Purpose Timer 99 Chapter 8 The General Purpose Timer...
Страница 118: ...General Purpose Timer Flash MCU HMS39C7092 118...
Страница 119: ...Flash MCU HMS39C7092 UART 119 Chapter 9 UART Universal Asynchronous Receiver Transmitter...
Страница 137: ...Flash MCU HMS39C7092 GPIO 137 Chapter 10 GPIO General Purpose Input Output...
Страница 142: ...GPIO Flash MCU HMS39C7092 142...
Страница 143: ...Flash MCU HMS39C7092 On Chip SRAM 143 Chapter 11 On Chip SRAM...
Страница 145: ...Flash MCU HMS39C7092 On chip Flash memory 145 Chapter 12 On chip Flash Memory...
Страница 173: ...Flash MCU HMS39C7092 A D Converter 173 Chapter 13 A D Converter...
Страница 185: ...Flash MCU HMS39C7092 Electrical Characteristics 185...
Страница 186: ...Electrical Characteristics Flash MCU HMS39C7092 186 Chapter 14 Electrical Characteristics...
Страница 195: ...Flash MCU HMS39C7092 Electrical Characteristics 195...
Страница 196: ...Electrical Characteristics Flash MCU HMS39C7092 196...
Страница 197: ...A 1 Flash MCU HMS39C7092 197 A 1 Package Dimension...