tmp89fm42l TOSHIBA Semiconductor CORPORATION, tmp89fm42l Datasheet - Page 85
tmp89fm42l
Manufacturer Part Number
tmp89fm42l
Description
8 Bit Microcontroller Tlcs-870/c1 Series
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TMP89FM42L.pdf
(428 pages)
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RA000
4.3.3
4.3.3.1
4.3.3.2
4.3.3.3
Note:x=1 to 3
Signal that has passed through
pins and generate interrupt request signals.
External interrupts 1/2/3
External interrupts 1/2/3 detect the falling edge, the rising edge or both edges of the INT1, INT2 and INT3
(detected at the falling edge)
be read by using EINTCRx<INTxLVL>. When both edges are selected as detection edges, the edge where
an interrupt is generated can be detected by reading EINTCRx<INTxLVL>.
(detected at the rising edge)
interval selected at EINTCRx<INTxNC>. If the same level is detected three consecutive times, the signal is
recognized as a signal. If not, the signal is removed as noise.
Figure 4-4 Interrupt Request Generation and EINTCRx<INTxLVL>
Select interrupt request signal generating conditions at EINTCRx<INTxES> for external interrupts 1/2/3.
The level of a signal that has passed through the noise canceller when an interrupt request is generated can
In NORMAL1/2 or IDLE1/2 mode, a signal that has been sampled by fcgck is sampled at the sampling
Interrupt request signal generating condition detection function
A noise canceller pass signal monitoring function when interrupt request signals are generated
Noise cancel time selection function
(detected at both edges)
Note:The contents of EINTCRx<INTxLVL> are updated each time an interrupt request signal is generated.
Interrupt request signal
Interrupt request signal
Interrupt request signal
the noise canceller
INT LVL
INT LVL
INT LVL
INTi pin
Table 4-2 Selection of Interrupt Request Generation Edge
EINTCRx<INTxES>
00
01
10
11
Page 71
Falling edge
Rising edge
Detected at
Both edges
Reserved
TMP89FM42L
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