mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 362

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

LLWU Signal Descriptions
16.2 LLWU Signal Descriptions
The signal properties of LLWU are shown in the following table. The external wakeup
input pins can be enabled to detect either rising edge, falling edge, or on any change.
362
LLWU_P15
LLWU_P0
RESET
LLWU_Pn
Signal
Module7 interrupt flag
(LLWU_M7IF)
Module0 interrupt flag
(LLWU_M0IF)
FILT2[FILTSEL]
FILT1[FILTSEL]
Wakeup inputs (n = 0-15)
Description
Synchronizer
Synchronizer
MCF51JF128 Reference Manual, Rev. 2, 03/2011
WUPE0
WUPE15
Edge
detect
Edge
detect
Table 16-1. LLWU Signal Descriptions
Figure 16-1. LLWU block diagram
2
2
Interrupt module
flag detect
Interrupt module
flag detect
WUME0
WUME7
RESET
Pin filter
LPO
LPO
LPO
Pin filter 1
Pin filter 2
Preliminary
RSTFILT
LLWU_MWUF7 occurred
LLWU_MWUF0 occurred
LLWU_P15
wakeup occurred
LLWU_P0
wakeup occurred
FILT1[FILTE]
FILT2[FILTE]
reset occurred
Edge
detect
Edge
detect
Pin filter 1
wakeup
occurred
Pin filter 2
wakeup
occurred
enter low leakge mode
Internal
module
sources
External
pin sources
controller
LLWU
Freescale Semiconductor, Inc.
exit low leakge mode
reset flow
interrupt flow
I/O
I