MPC8544COMEDEV Freescale Semiconductor, MPC8544COMEDEV Datasheet - Page 760

• Manufacturer Part Number: MPC8544COMEDEV
• Description: KIT DEV EXPRESS MPC8544COM
• Manufacturer: Freescale Semiconductor
• Type: MPUr

Specifications of MPC8544COMEDEV

• Contents: Board
• For Use With/related Products: MPC8544
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Enhanced Three-Speed Ethernet Controllers
15.5.3.1.4
The interrupt mask register provides control over which possible interrupt events in the IEVENT register
are permitted to participate in generating hardware interrupts to the PIC. All implemented bits in this
register are R/W and cleared upon a hardware reset. If the corresponding bits in both the IEVENT and
IMASK registers are set, the PIC will receive an interrupt (for each eTSEC these are grouped into transmit,
receive, and error/diagnostic interrupts). The interrupt signal remains asserted until either the IEVENT bit
is cleared, by writing a 1 to it, or by writing a 0 to the corresponding IMASK bit.
Figure 15-5
15-28
Bits
29
30
31
Name
PERR
DPE
FIQ
describes the IMASK register.
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
Interrupt Mask Register (IMASK)
Filed frame to invalid receive queue. This bit indicates that either the receive queue filer chose to DMA a
received frame to a disabled RxBD ring, or that no rule in the filer table could be matched.
0 Received frames filed to valid queues or rejected. Note that a frame may be rejected if the filer has
1 Received frames filed to RxBD rings that are not enabled. The frame is discarded. If bit FIR is also set
which is likely to compromise the validity of recently transferred frames.
0 No parity errors detected.
1 Data held in the FIFO or filer arrays is expected to be corrupted due to a parity error.
unambiguously, due to encapsulated header type fields contradicting each other.
0 Received frame parsed successfully.
1 Received frame parse revealed header inconsistencies.
Internal data parity error. This bit indicates that the eTSEC has detected a parity error on its stored data,
Receive frame parse error for TCP/IP off-load. This bit indicates that a received frame could not be parsed
insufficient time to reach a conclusive result between frames, in which case bit FIR is set.
this indicates that the filer exhausted all of its table entries without a rule match.
Table 15-7. IEVENT Field Descriptions (continued)
Description
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