MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
9-12 Freescale Semiconductor
9.3.1.3 eDMA Enable Request Registers (EDMA_ERQRH, EDMA_ERQRL)
The EDMA_ERQRH and EDMA_ERQRL provide a bit map for the 64 (MPC5554) or 32 (MPC5553)
implemented channels to enable the request signal for each channel. For the MPC5554, EDMA_ERQRH
supports channels 63–32, while EDMA_ERQRL covers channels 31–00. For the MPC5553,
EDMA_ERQRL maps to channels 31-0. EDMA_ERQRH is reserved on the MPC5553 and accessing it
will result in a bus error.
The state of any given channel enable is directly affected by writes to these registers; the state is also
affected by writes to the EDMA_SERQR and EDMA_CERQR. The EDMA_CERQR and
EDMA_SERQR are provided so that the request enable for a single channel can easily be modified without
the need to perform a read-modify-write sequence to the EDMA_ERQRH and EDMA_ERQRL.
24 SAE Source address error.
0 No source address configuration error.
1 The last recorded error was a configuration error detected in the TCD.SADDR field, indicating
TCD.SADDR is inconsistent with TCD.SSIZE.
25 SOE Source offset error.
0 No source offset configuration error.
1 The last recorded error was a configuration error detected in the TCD.SOFF field, indicating
TCD.SOFF is inconsistent with TCD.SSIZE.
26 DAE Destination address error.
0 No destination address configuration error.
1 The last recorded error was a configuration error detected in the TCD.DADDR field, indicating
TCD.DADDR is inconsistent with TCD.DSIZE.
27 DOE Destination offset error.
0 No destination offset configuration error.
1 The last recorded error was a configuration error detected in the TCD.DOFF field, indicating
TCD.DOFF is inconsistent with TCD.DSIZE.
28 NCE NBYTES/CITER configuration error.
0 No NBYTES/CITER configuration error.
1 The last recorded error was a configuration error detected in the TCD.NBYTES or TCD.CITER
fields, indicating the following conditions exist:
• TCD.NBYTES is not a multiple of TCD.SSIZE and TCD.DSIZE, or
• TCD.CITER is equal to zero, or
• TCD.CITER.E_LINK is not equal to TCD.BITER.E_LINK.
29 SGE Scatter/gather configuration error.
0 No scatter/gather configuration error.
1 The last recorded error was a configuration error detected in the TCD.DLAST_SGA field,
indicating TCD.DLAST_SGA is not on a 32-byte boundary. This field is checked at the
beginning of a scatter/gather operation after major loop completion if TCD.E_SG is enabled.
30 SBE Source bus error.
0 No source bus error.
1 The last recorded error was a bus error on a source read.
31 DBE Destination bus error.
0 No destination bus error.
1 The last recorded error was a bus error on a destination write.
Table 9-3. EDMA_ESR Field Descriptions (Continued)
Bits Name Description
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