Enhanced Direct Memory Access (eDMA)
MPC5606S Microcontroller Reference Manual, Rev. 7
486
Freescale Semiconductor
15.3.1.6
DMA Clear Enable Request (DMACERQ) register
The DMACERQ register provides a simple memory-mapped mechanism to clear a given bit in the
DMAERQ{H,L} registers to disable the DMA request for a given channel. The data value on a register
write causes the corresponding bit in the DMAERQ{H,L} register to be cleared. A data value of 64 to 127
(regardless of the number of implemented channels) provides a global clear function, forcing the entire
contents of the DMAERQ{H,L} to be zeroed, disabling all DMA request inputs. If bit 0 (NOP) is set, the
command is ignored. This allows multiple byte registers to be written as a 32-bit word. Reads of this
register return all zeroes. See
for the DMACERQ definition.
15.3.1.7
DMA Set Enable Error Interrupt (DMASEEI) register
The DMASEEI register provides a simple memory-mapped mechanism to set a given bit in the
DMAEEI{H,L} registers to enable the error interrupt for a given channel. The data value on a register
write causes the corresponding bit in the DMAEEI{H,L} register to be set. A data value of 64 to 127
Address: Base + 0x0018
Access: User write-only
0
1
2
3
4
5
6
7
R
0
0
0
0
0
0
0
0
W
NOP
SERQ
Reset
0
0
0
0
0
0
0
0
Figure 15-8. DMA Set Enable Request (DMASERQ) register
Table 15-6. DMA Set Enable Request (DMASERQ) field descriptions
Name
Description
NOP
No Operation
0 Normal operation.
1 No operation, ignore bits 6-0
SERQ[0:6]
Set Enable Request
0-63 Set the corresponding bit in DMAERQ{H,L}
64-127 Set all bits in DMAERQ{H,L}
Address: Base + 0x0019
Access: User write-only
0
1
2
3
4
5
6
7
R
0
0
0
0
0
0
0
0
W
NOP
CERQ[0:6]
Reset
0
0
0
0
0
0
0
0
Figure 15-9. DMA Clear Enable Request (DMACERQ) register
Table 15-7. DMA Clear Enable Request (DMACERQ) field descriptions
Name
Description
NOP
No Operation
0 Normal operation.
1 No operation, ignore bits 6-0
CERQ[0:6]
Clear Enable Request
0-63 Clear corresponding bit in DMAERQ{H,L}
64-127 Clear all bits in DMAERQ{H,L}
Содержание MPC5602S
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Страница 82: ...Memory Map MPC5606S Microcontroller Reference Manual Rev 7 80 Freescale Semiconductor...
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Страница 524: ...Enhanced Direct Memory Access eDMA MPC5606S Microcontroller Reference Manual Rev 7 522 Freescale Semiconductor...
Страница 546: ...Error Correction Status Module ECSM MPC5606S Microcontroller Reference Manual Rev 7 544 Freescale Semiconductor...
Страница 669: ...Flash Memory MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 667...
Страница 670: ...Flash Memory MPC5606S Microcontroller Reference Manual Rev 7 668 Freescale Semiconductor...
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Страница 1213: ...System Integration Unit Lite SIUL MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 1211...
Страница 1214: ...System Integration Unit Lite SIUL MPC5606S Microcontroller Reference Manual Rev 7 1212 Freescale Semiconductor...
Страница 1238: ...Voltage Regulators and Power Supplies MPC5606S Microcontroller Reference Manual Rev 7 1236 Freescale Semiconductor...
Страница 1252: ...Wakeup Unit WKPU MPC5606S Microcontroller Reference Manual Rev 7 1250 Freescale Semiconductor...
Страница 1258: ...Registers Under Protection MPC5606S Microcontroller Reference Manual Rev 7 1256 Freescale Semiconductor...
Страница 1323: ...Register Map MPC5606S Microcontroller Reference Manual Rev 7 Freescale Semiconductor 1321...
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