TMP88CU74F datasheet(36/132 Pages) TOSHIBA

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TMP88CU74

2003-02-17

88CU74-36

EINTCR

(00037H)

INT1

INT0

INT4

INT3

INT2

INT1

(Initial value: 00

*0 000*)

INT1NC

Noise reject time select

0: Pulses of less than 63/fc [s] are eliminated as noise

1: Pulses of less than 15/fc [s] are eliminated as noise

INT0EN

P10/ INT0 pin configuration

0: P10 input/output port

1: INT0 pin (Port P10 should be set to an input mode)

INT4ES

INT3ES

INT2ES

INT1ES

INT4 to INT1 edge select

0: Rising edge

1: Falling edge

R/W

Note 1: fc: High-frequency clock [Hz],

*: Don’t care

Note 2: Edge detection during switching edge selection is invalid.

Note 3: Do not change EINTCR only when IMF

= 0. After changing EINTCR, interrupt latches of external interrupt inputs

must be cleared to “0” using load instruction.

Note 4: In order to change of external interrupt input by rewriting the contents of INT2ES and INT3ES and INT4ES

during NORMAL 1/2 mode, clear interrupt latches of external interrupt inputs (INT2 and INT3 and INT4) after 8

machine cycles from the time of rewriting. During SLOW mode, 3 machine cycles are required.

Figure 1.5.5 External Interrupt Control Register

2007-10-19

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