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Section 7 DMA Controller (DMAC)
Rev. 3.00 Mar. 14, 2006 Page 146 of 804
REJ09B0104-0300
Bit Bit
Name
Initial
Value R/W Description
19 ERRF
0
R/(W)
*
System Error Flag
Indicates that an address error or an NMI interrupt has
been generated. This bit is available only in DMDR_0.
Setting this bit to 1 prohibits writing to the DTE bit for all
the channels. This bit is reserved in DMDR_1 to
DMDR_3. It is always read as 0 and cannot be modified.
0: An address error or an NMI interrupt has not been
generated
1: An address error or an NMI interrupt has been
generated
[Clearing condition]
•
When clearing to 0 after reading ERRF = 1
[Setting condition]
•
When an address error or an NMI interrupt has been
generated
However, when an address error or an NMI interrupt has
been generated in module stop mode, this bit is not set.
18
0 R Reserved
This is a read-only bit and cannot be modified.
17 ESIF 0
R/(W)
*
Transfer Escape Interrupt Flag
Indicates that a transfer escape end interrupt has been
requested. A transfer escape end means that a transfer
is terminated before the transfer counter reaches 0.
0: A transfer escape end interrupt has not been
requested
1: A transfer escape end interrupt has been requested
[Clearing conditions]
•
When setting the DTE bit to 1
•
When clearing to 0 before reading ESIF = 1
[Setting conditions]
•
When a transfer size error interrupt is requested
•
When a repeat size end interrupt is requested
•
When a transfer end interrupt by an extended repeat
area overflow is requested
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