tmp88cs38ng TOSHIBA Semiconductor CORPORATION, tmp88cs38ng Datasheet - Page 31

• Manufacturer Part Number: tmp88cs38ng
• Description: Cmos 8-bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Note 1: The noise rejection function is also affected for timer counter input 1 (TC1 pin).
Note 2: If a noiseless signal is input to the external interrupt pin in the NORMAL or IDLE mode, the maximum
Note 3: If a dual-function pin is used as an output port, changing data or switching between input and output
Note 4: If INT0EN = “0”, detecting the falling edge of the
Source
INT0
INT2
INT3
INT4
INT5
time from the edge of input signal until the IL is set is as follows:
(1) INT2, INT4 pin 31/fc [s]
(2) INT3 pin
generates a pseudo interrupt request signal. To ignore this signal, it is necessary to reset the interrupt
enable flag.
INT0
INT2
INT3
INT4
INT5
Pin
P50/TC2/
P53/TC1/
Function Pin
Secondary
AIN0/
P20/
P30/RXIN
Refer to the section of the remote control preprocessor.
P31/TC3
STOP
KWU0
PWM8
SCK1
/
Table 1.5.2 External Interrupts
IMF = 1, INT0EN = 1, EF
IMF·EF
IMF·EF
IMF·EF
IMF·EF
Enable Conditions
7
11
12
15
= 1
88CS38-31
= 1
= 1
= 1
INT0
3
= 1
pin input does not set the interrupt latch IL3.
Falling edge
Falling edge or
rising edge
Falling edge,
rising edge or
falling/rising edge
Falling edge or
rising edge
Falling edge
Edge
TMP88CS38/CM38A/CP38A
Any pulse shorter than 2/fc [s]
is regarded as noise and
removed. Pulses not shorter
than 7/fc [s] are definitely
regarded as signals.
Pulses of less than 7/fc [s] are
eliminated as noise. Pulses
equal to or more than 25/fc [s]
are regarded as signals.
Refer to the section of the
remote control preprocessor
Pulses of less than 7/fc [s] are
eliminated as noise. Pulses of
25/fc [s] or more are
considered to be signals.
Any pulse shorter than 2/fc [s]
is regarded as noise and
removed. Pulses not shorter
than 7/fc [s] are definitely
regarded as signals.
Digital Noise Rejection
2007-09-12