Rev. 5.00, 09/03, page 375 of 760
Conditions for Ending on All Channels Simultaneously: Transfers on all channels end (1) when
the AE or NMIF (NMI flag) bit is set to 1 in DMAOR, or (2) when the DME bit in DMAOR is
cleared to 0.
•
Transfer ending when the NMIF bit is set to 1 in DMAOR: When an NMI interrupt occurs, the
AE or NMIF bit is set to 1 in DMAOR and all channels stop their transfers according to the
conditions in (a) to (d) described above, and pass the bus to an other bus master. Consequently,
even if the AE or NMI bit is set to 1 during transfer, SAR, DAR, DMATCR are updated. The
TE bit is not set. To resume transfer after NMI interrupt exception handling, clear the NMIF
bit to 0. At this time, if there are channels that should not be restarted, clear the corresponding
DE bit in CHCR.
•
Transfer ending when DME is cleared to 0 in DMAOR: Clearing the DME bit to 0 in DMAOR
forcibly aborts transfer on all channels. The TE bit is not set. All channels abort their transfer
according to the conditions in (a) to (d) in section 11.3.7, DMA Transfer Ending Conditions, as
in NMI interrupt generation. In this case, the values in SAR, DAR, and DMATCR are also
updated.
Содержание SH7709S
Страница 2: ......
Страница 44: ...Rev 5 00 09 03 page xliv of xliv ...
Страница 62: ...Rev 5 00 09 03 page 18 of 760 ...
Страница 128: ...Rev 5 00 09 03 page 84 of 760 ...
Страница 146: ...Rev 5 00 09 03 page 102 of 760 ...
Страница 224: ...Rev 5 00 09 03 page 180 of 760 ...
Страница 246: ...Rev 5 00 09 03 page 202 of 760 ...
Страница 266: ...Rev 5 00 09 03 page 222 of 760 ...
Страница 370: ...Rev 5 00 09 03 page 326 of 760 ...
Страница 432: ...Rev 5 00 09 03 page 388 of 760 ...
Страница 532: ...Rev 5 00 09 03 page 488 of 760 ...
Страница 598: ...Rev 5 00 09 03 page 554 of 760 ...
Страница 630: ...Rev 5 00 09 03 page 586 of 760 ...
Страница 656: ...Rev 5 00 09 03 page 612 of 760 ...
Страница 684: ...Rev 5 00 09 03 page 640 of 760 ...
Страница 700: ...Rev 5 00 09 03 page 656 of 760 ...
Страница 758: ...Rev 5 00 09 03 page 714 of 760 ...
Страница 807: ...SH7709S Group Hardware Manual REJ09B0081 0500O ADE 602 250C ...