MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
10-28 Freescale Semiconductor
NOTE
The INTC has no spurious vector support. Therefore, if an asserted
peripheral or software settable interrupt request (whose PRIn value in
INTC_PSR0–INTC_PSR385 is higher than the PRI value in INTC_CPR)
negates before the interrupt request to the processor for that peripheral or
software settable interrupt request is acknowledged, the interrupt request to
the processor still can assert or remain asserted for that peripheral or
software settable interrupt request. If the interrupt request to the processor
does assert or does remain asserted, the interrupt vector will correspond to
that peripheral or software settable interrupt request. Also, the PRI value in
the INTC_CPR will be updated with the corresponding PRIn value in
INTC_PSRn.
Furthermore, clearing the peripheral interrupt request’s enable bit in the
peripheral or, alternatively, setting its mask bit has the same consequences
as clearing its flag bit. Setting its enable bit or clearing its mask bit while its
flag bit is asserted has the same effect on the INTC as an interrupt event
setting the flag bit.
10.4.1.1 Peripheral Interrupt Requests
An interrupt event in a peripheral’s hardware sets a flag bit which resides in that peripheral. The interrupt
request from the peripheral is driven by that flag bit.
0x1280 296 — CANB_IFRL[BUF13] FLEXCAN_B Buffer 13 Interrupt
0x1290 297 — CANB_IFRL[BUF14] FLEXCAN_B Buffer 14 Interrupt
0x12A0 298 — CANB_IFRL[BUF15] FLEXCAN_B Buffer 15 Interrupt
0x12B0 299 — CANB_IFRL[BUF31:BUF16] FLEXCAN_B Buffers 31 - 16 Interrupts
0x12C0 300 — CANB_IFRH[BUF63:BUF32] FLEXCAN_B Buffers 63 - 32 Interrupts
0x12D0 301 — Reserved Reserved
0x12E0 302 — Reserved Reserved
0x12F0 303 — Reserved Reserved
0x1300 304 — Reserved Reserved
0x1310 305 — Reserved Reserved
0x1320 306 — Reserved Reserved
0x1330 307 — Reserved Reserved
1
Interrupt requests from the same module location are ORed together.
Table 10-9. INTC: Interrupt Request Sources (Continued)
Hardware
Vector
Mode
Offset
Vector
Source
1
MPC5553
Source
1
MPC5554
Description
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