MPC5604B/C Microcontroller Reference Manual, Rev. 8
Freescale Semiconductor 235
NOTE
Status bits associated with on-chip wakeup sources are located to the left of
the external wakeup/interrupt status bits and are read only. The wakeup for
these sources must be configured and cleared at the on-chip wakeup source.
Also, the configuration registers for the external interrupts/wakeups do not
have corresponding bits.
12.4.5 Interrupt Request Enable Register (IRER)
This register is used to enable the interrupt messaging from the wakeup/interrupt pads to the interrupt
controller.
12.4.6 Wakeup Request Enable Register (WRER)
This register is used to enable the system wakeup messaging from the wakeup/interrupt pads to the mode
entry and power control modules.
Offset: 0x18 Access: User read/write
012345678910111213141516171819202122232425262728293031
R000000000000 EIRE[19:0]
1
1
EIRE[18:15] are not available in all 100-pin packages.
W
w1c
Reset00000000000000000000000000000000
Figure 12-5. Interrupt Request Enable Register (IRER)
Table 12-6. IRER field descriptions
Field Description
EIRE[x] External Interrupt Request Enable x
1 A set EIF[x] bit causes an interrupt request
0 Interrupt requests from the corresponding EIF[x] bit are disabled
Offset: 0x1C Access: User read/write
012345678910111213141516171819202122232425262728293031
R000000000000
WRE[19:0]
1
1
WRE[18:15] are not available in all 100-pin packages.
W
Reset00000000000000000000000000000000
Figure 12-6. Wakeup Request Enable Register (WRER)