Toshiba TMP87CP24AF - Manual (Page 38)

TOSHIBA
TMP87CM24A/P24A
Notes on usage of external interrupts:
Note 1: When INTO to INT5 flNTO, INTI, INT2, INT3, INT5J are used in SLOW or SLEEP mode, the noise
cancellation function is disabled. Noise cancellation time for a pulse input during operating
mode transition is indeterminate.
Note 2: Input pulse width for INTO and I NTS must be one machine cycle or more at both high and low
levels.
INTO, INT5 input pulse
L
tiNTL tiNTH
tiNTL, tiNTH > tcyc
tcyc = 4/fc [s] (at NORMAL 1/2 and IDLE 1/2 modes)
4/fs [s] (at SLOW and SLEEP modes)
Note 3: If a signal without noise is input to the external interrupt pin in NORMAL 1/2 or IDLE 1/2 mode,
the maximum times from input signal edge to input latch set are as described below:
© INTI pin 49/fc Is] (when INT1NC = 1)
193/fc [s] (when INTINC = 0)
(2) INT2 pin 25/fc [s]
2 INT3 pin 25/fc [s] (when #00371-1: INT3W = 0, falling or rising edge)
25/fc [s] (when #0037H: INT3W= 1 and #001FH: NCS (0, 0, 0) )
(26/fc) x8.5 + 19/fc [s] (when #0037H: INT3W= 1 and #001 FH: NCS (0, 0, 1) )
(27/fc) x8.5 + 19/fc Is] (when #0037H: INT3W= 1 and #001 FH: NCS (0, 1, 0) )
(28/fc) x8.5 + 19/fc [s] (when #0037H: INT3W= 1 and #001 FH: NCS (0, 1, 1) )
(29/fc) x8.5 + 19/fc Is] (when #0037H: INT3W= 1 and #001 FH: NCS (1, 0, 0) )
(210/fc) x8.5 + 19/fc [s] (when #0037H: INT3W= 1 and #001 FH: NCS (1, 0, 1) )
(211/fc) x8.5 + 19/fc [s] (when #0037H: INT3W= 1 and #001 FH: NCS (1, 1, 0) )
(212/fc) x8.5 + 19/fc Is] (when #0037H: INT3W= 1 and #001 FH: NCS (1, 1, 1) )
Note 4: Noise cancellation/pulse receive conditions for timer/counter are as described below:
® TCI pin : Less than 7/fc [s] (noise cancellation) and 24/fc [s] or more (pulse receive)
2 TC3 pin : When INT3W=0, less than 7/fc [s] (noise cancellation) and 24/fc [s] or more
(pulse receive).
For when INT3W = 1, see Table 1-3 (b).
Note 5: When INTOEN = 0, interrupt latch IL3 is not set even if a falling edge is detected for INTO pin
input.
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24-38 2002
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10-03