Micronas SDA 6000, User Manual

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SDA 6000
PRELIMINARY DATA SHEET
Version 2.1
Interrupt and Trap Functions
5 - 28 Micronas
The 8 lines can be programmed individually to this fast interrupt mode, where the trigger
transition (rising, falling or both) can also be selected. The External Interrupt Control
register EXICON controls this feature for all 8 signals.
EXICON (F1C0
H
/ E0
H
) Reset Value: 0000
H
Note: The fast external interrupt inputs are sampled every 2 TCL. The interrupt request
arbitration and processing, however, is executed every 8 TCL.
In Sleep mode, no clock is available for sampling, but interrupt request detection is still
possible on fast interrupt request lines using asynchronous logic.
Bit Function
EXIxES External Interrupt x Edge Selection Field (x = 7 … 0)
0 0: Fast external interrupts disabled: standard mode
0 1: Interrupt on positive edge (rising)
1 0: Interrupt on negative edge (falling)
1 1: Interrupt on any edge (rising or falling)
5 4 3 2 1 0 11 10 9 8 7 6 15 14 13 12
rw rw rw
EXI2ES EXI0ES EXI1ES
rw rw rw
EXI7ES EXI5ES EXI6ES
rw rw
EXI3ES EXI4ES