Renesas PROM Programming Adapter PCA7408 Manuale Utente Pagina 20

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M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
Rev.1.00 Oct 01, 2002 page 20 of 110
REJ03B0134-0100Z
(4) Serial I/O interrupt
This is an interrupt request from the clock synchronous serial I/O
function.
(5) f(XIN)/4096 interrupt
The f (XIN)/4096 interrupt occurs regularly with a f(XIN)/4096 pe-
riod. Set bit 0 of PWM output control register 1 to “0.”
(6) Multi-master I
2
C-BUS interface interrupt
This is an interrupt request related to the multi-master I
2
C-BUS
interface.
(7) BRK instruction interrupt
This software interrupt has the least significant priority. It does
not have a corresponding interrupt enable bit, and it is not af-
fected by the interrupt disable flag I (non-maskable).
Fig. 8.3.1 Interrupt Control
Interrupt request bi
t
Interrupt enable bi
t
Interrupt disable flag
I
BRK instruction
Reset
Interrupt
request
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