12. Timer 0/1/2/3/4/5
A96G150 User's manual
148
12.5.2
16-bit capture mode
Timer 4 capture mode is set by configuring T4MS[1:0] as ‘01’.
It uses an internal clock as a clock source.
Basically, the 16-bit timer 4 capture mode has the same function as the 16-bit timer/counter mode, and
the interrupt occurs when T4CNTH/T4CNTL is equal to T4ADRH/T4ADRL. The T4CNTH, T4CNTL
values are automatically cleared by a match signal. It can be cleared by software (T4CC) too.
A timer interrupt in capture mode is very useful when the pulse width of captured signal is wider than
the maximum period of timer. Capture result is loaded into T4BDRH/T4BDRL. In the timer 4 capture
mode, timer 4 output (T4O) waveform is not available.
According to EIPOL0L registers setting, the external interrupt EINT44 function is selected. EINT44 pin
must be set as an input port.
A Match
T4CC
T4EN
P
r
e
s
c
a
l
e
r
fx
M
U
X
fx/2
fx/4
fx/32
fx/128
fx/512
fx/8
fx/1
16-bit Cou nte r
T4CNTH/T4CNTL
16-bit B Data Re gister
T4BDRH/T4BDRL
Clear
T1 A Match
Comparator
16-bit A Data Re gister
T4ADRH/T4ADRL
T4IFR
S/W
Clear
To i nte rrupt
block
A Match
Buffer Reg ister A
Reload
R
EINT44
T4CNTR
T4EN
3
T4CK[2:0]
Clear
FLAG44
(EIFLAG0.4)
INT_ACK
Clear
To i nte rrupt
block
T4MS[1:0]
2
A Match
T4CC
T4EN
T4EN
T4CRH
1
ADDRES S:1008H
INITIAL VALUE : 0000_0000B
–
T4MS1
T4MS0
–
–
–
T4CC
–
0
1
–
–
–
X
T4CK2
T4CRL
X
ADDRES S:1009H
INITIAL VALUE : 0000_0000B
T4CK1
T4CK0
T4IFR
–
T4POL
–
T4CNTR
X
X
X
–
X
–
X
EIPOL0H[1:0]
2
NOTE:
T3 A Match is a pulse for the timer 4 clock source if it is selected.
Figure 60. 16-bit Capture Mode of Timer 4
Содержание A96G150
Страница 126: ...12 Timer 0 1 2 3 4 5 A96G150 User s manual 126 Figure 43 16 bit Timer Counter Mode Operation Example...
Страница 136: ...12 Timer 0 1 2 3 4 5 A96G150 User s manual 136 Figure 51 16 bit Timer Counter Mode Operation Example...
Страница 147: ...A96G150 User s manual 12 Timer 0 1 2 3 4 5 147 Figure 59 16 bit Timer Counter Mode Operation Example...
Страница 157: ...A96G150 User s manual 12 Timer 0 1 2 3 4 5 157 Figure 67 16 bit Timer Counter Mode Operation Example...
Страница 171: ...A96G150 User s manual 14 12 bit ADC 171 Figure 79 ADC Operation Flow Sequence...
Страница 333: ...A96G150 User s manual Revision history 333 Revision history Revision Date Notes 1 00 2022 06 22 First creation...