185
6174B–ATARM–07-Nov-05
AT91FR40162S Preliminary
Figure 20-5. Timer Input
20.2.3
Reset Signals
A minimum pulse width is necessary, as shown in
Figure 20-6. Reset Signal
Only the NRST rising edge is synchronized with MCKI. The falling edge is asynchronous.
20.2.4
Advanced Interrupt Controller Signals
Inputs have to meet the minimum pulse width and minimum input period shown in
and
and represented in
.
MCKI
TIOA/
TIOB/
TCLK
TC
1
3(t
CP
/2)
3(t
CP
/2)
TC
2
Table 20-5.
Reset Minimum Pulse Width
Symbol
Parameter
Min Pulse-width
Units
RST
1
NRST Minimum Pulse Width
10(t
CP
)
ns
NRST
RST
1
Table 20-6.
AIC Input Minimum Pulse Width
Symbol
Parameter
Min Pulse Width
Units
AIC
1
FIQ/IRQ0/IRQ1/IRQ2/IRQ3 Minimum
Pulse Width
3(t
CP
/2)
ns
Table 20-7.
AIC Input Minimum Period
Symbol
Parameter
Min Input Period
Units
AIC
2
AIC Minimum Input Period
5(t
CP
/2)
ns
Содержание AT91FR40162S
Страница 180: ...180 6174B ATARM 07 Nov 05 AT91FR40162S Preliminary Figure 19 2 MCKO Relative to NRST NRST tD MCKO...
Страница 195: ...195 6174B ATARM 07 Nov 05 AT91FR40162S Preliminary 20 5 2 CE Controlled Figure 20 15 CE Controlled...
Страница 204: ...204 6174B ATARM 07 Nov 05 AT91FR40162S Preliminary 23 AT91FR40162S Errata There is no known errata for the AT91FR40162S...