PXN20 Datasheet, PDF (43/60 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

4.14 AC timing
Electrical characteristics
4.14.1 Reset and boot configuration pins
Table 25. Reset and boot configuration timing
Spec
Characteristic
1 RESET Pulse Width
2 BOOTCFG Setup Time after RESET Valid
3 BOOTCFG Hold Time from RESET Valid
Symbol Min
t_RPW
150
t_RCSU
—
t_RCH
0
Max Unit
—
ns
100
s
—
s
RESET
BOOTCFG
1
2
3
Figure 7. Reset and boot configuration timing
4.14.2 External interrupt (IRQ) and non-maskable interrupt (NMI) pins
Table 26. IRQ/NMI timing
Spec
Characteristic
Symbol
Min
1 IRQ/NMI Pulse Width Low
t_IPWL
3
2 IRQ/NMI Pulse Width High
T_IPWH
3
3 IRQ/NMI Edge to Edge Time¹
t_ICYC
6
1 _{Applies when IRQ/NMI pins are configured for rising edge or falling edge events, but not both.}
Max
—
—
—
Unit
t_SYS
t_SYS
t_SYS
IRQ/NMI
1,2
1,2
3
Figure 8. IRQ and NMI timing
PXN20 Microcontroller Data Sheet, Rev. 1
Freescale Semiconductor
43