Toshiba – Toshiba TMP87CP24AF User Manual
Page 44
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TOSHIBA
TMP87CM24A/P24A
Operation description for INT3 (both-edqe interrupt) in use:
1. Operation without setting/modifying external interrupt control register (EINTCR) after reset:
For both-edge interrupts, rising edge is selected (INT3ES = 0) and fixed.
1)Case1: When the initial state of the INT3 pin is high after reset:
Reset
INT3ES
( = 0 : Keep rising edge)
INT3 terminal
EI/DI
(Dl)
instruction
I L11 (#003DH ; bitll)
Clear point of I L 11
INT3DET(#001FH ; bit3)
Read point of INT3DET
INTEDT(#001FH ; bit7)
Read point of INTEDT
(El)t
2)Case2: When the initial state of the INT3 pin is low after reset:
Reset
INT3ES ( = 0 : Keep rising edge)
INT3 terminal
EI/DI (Dl)
instruction
I L11 (#003DH ; bitll)
Clear point of I L 11
INT3DET(#001FH ; bit3)
Read point of INT3DET
INTEDT (#001 FH ; bit7)
Read point of INTEDT
3
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24-44
2002
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10-03