HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 464
HD6417641
Manufacturer Part Number
HD6417641
Description
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
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Section 13 Direct Memory Access Controller (DMAC)
Rev. 4.00 Sep. 14, 2005 Page 414 of 982
REJ09B0023-0400
Bit
2
1
Bit Name
IE
TE
Initial
Value
0
0
R/W
R/W
R/W*
Descriptions
Interrupt Enable
This bit specifies whether or not an interrupt request is
generated to the CPU at the end of the DMA transfer.
Setting this bit to 1 generates an interrupt request
(DEI) to the CPU when TE bit is set to 1.
0: Interrupt request is not generated
1: Interrupt request is generated
Transfer End Flag
This bit shows that DMA transfer ends. TE is set to 1
when data transfer ends when DMATCR becomes
to 0.
The TE bit is not set to 1 in the following cases.
•
•
Even if the DE bit is set to 1 while this bit is set to 1,
transfer is not enabled.
0: During the DMA transfer or DMA transfer has been
1: Data transfer ends by the specified count (DMACTR
[Clearing condition]
Writing 0 after TE = 1 read
interrupted
= 0)
DMA transfer ends due to a NMI interrupt or DMA
address error before DMATCR becomes to 0.
DMA transfer is ended by clearing the DE bit and
DME bit in DMA operation register (DMAOR).
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