13 PWM & CAPTURE TIMER (T16E)
S1C17704 TECHNICAL MANUAL
EPSON
13-19
0x530c: PWM Timer Interrupt Flag Register (T16E_IFLG)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
PWM Timer
Interrupt
Flag Register
(T16E_IFLG)
0x530c
(16 bits)
D15–2
–
reserved
–
–
–
0 when being read.
D1
CBIF
Compare B interrupt flag
1 Cause of
interrupt
occurred
0 Cause of
interrupt not
occurred
0
R/W Reset by writing 1.
D0
CAIF
Compare A interrupt flag
0
R/W
D[15:2] Reserved
D1
CBIF: Compare B Interrupt Flag
This is the interrupt flag to indicate the compare B interrupt cause occurrence status.
1 (R):
Cause of interrupt has occurred
0 (R):
No cause of interrupt has occurred (default)
1 (W):
Flag is reset
0 (W):
Has no effect
CBIF is the interrupt flag for the compare B interrupt. The interrupt flag is set to 1 when the count
of the counter matches the set value of the compare data B register during count-up if CBIE (D1/
T16E_IMSK) has been set to 1. At the same time, the PWM & capture timer interrupt request signal is
output to the ITC. The interrupt request signal sets the PWM & capture timer interrupt flag in the ITC
to 1 and an interrupt occurs if other interrupt conditions meet the ITC and S1C17 Core settings.
D0
CAIF: Compare A Interrupt Flag
This is the interrupt flag to indicate the compare A interrupt cause occurrence status.
1 (R):
Cause of interrupt has occurred
0 (R):
No cause of interrupt has occurred (default)
1 (W):
Flag is reset
0 (W):
Has no effect
CAIF is the interrupt flag for the compare A interrupt. The interrupt flag is set to 1 when the count
of the counter matches the set value of the compare data A register during count-up if CAIE (D0/
T16E_IMSK) has been set to 1. At the same time, the PWM & capture timer interrupt request signal is
output to the ITC. The interrupt request signal sets the PWM & capture timer interrupt flag in the ITC
to 1 and an interrupt occurs if other interrupt conditions meet the ITC and S1C17 Core settings.
The settings shown below are required to manage the cause-of-interrupt occurrence status using this
register.
1. Set the PWM & capture timer interrupt trigger mode in the ITC to level trigger.
2. After an interrupt occurs, reset the CAIF or CBIF interrupt flag of the T16E module in the interrupt
handler routine (this also resets the interrupt flag in the ITC).
The CAIF and CBIF flags are reset by writing 1.
Note
: To avoid occurrence of unnecessary interrupts, be sure to reset the CAIF or CBIF flag before the
compare A match or compare B match interrupt is enabled using CAIE (D0/T16E_IMSK) or CBIE
(D1/T16E_IMSK).
Содержание S1C17704
Страница 1: ...TECHNICAL MANUAL S1C17704 CMOS 16 BIT SINGLE CHIP MICROCOMPUTER ...
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Страница 42: ...3 MEMORY MAP BUS CONTROL 3 12 EPSON S1C17704 TECHNICAL MANUAL THIS PAGE IS BLANK ...
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Страница 108: ...8 CLOCK GENERATOR CLG 8 8 EPSON S1C17704 TECHNICAL MANUAL THIS PAGE IS BLANK ...
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Страница 138: ...10 I O PORTS P 10 26 EPSON S1C17704 TECHNICAL MANUAL THIS PAGE IS BLANK ...
Страница 156: ...11 16 BIT TIMERS T16 11 18 EPSON S1C17704 TECHNICAL MANUAL THIS PAGE IS BLANK ...
Страница 208: ...14 8 BIT OSC1 TIMER T8OSC1 14 16 EPSON S1C17704 TECHNICAL MANUAL THIS PAGE IS BLANK ...
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Страница 264: ...18 UART 18 22 EPSON S1C17704 TECHNICAL MANUAL THIS PAGE IS BLANK ...
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