Section 11 Direct Memory Access Controller (DMAC)
Rev. 2.00 Mar 09, 2006 page 478 of 906
REJ09B0292-0200
TCR = 0?
DE,
DME = 1 and NMIF,
AE, TE = 0?
Has a
transfer request been
generated?
*
1
Transfer aborted
Initial settings
(SAR, DAR, TCR, CHCR,
VCRDMA, DRCR, DMAOR)
Transfer
TCR-1
→
TCR,
SAR, and DAR updated
DEI interrupt request
(when IE = 1)
TE = 1
TE = 1
No
Yes
No
Yes
No
Yes
No
Yes
No
*
3
*
5
*
4
*
2
Start
End normally
End transfer
Yes
16-byte transfer
in progress?
NMIF = 1, or
AE = 1, or DE = 0, or
DME = 0?
NMIF = 1,
or AE = 1, or DE = 0,
or DME
= 0?
Bus
mode, transfer
request mode, DREQ detec-
tion method?
Notes: 1. In auto-request mode, the transfer will start when the NMIF, AE, and TE bits are all 0
and the DE and DME bits are then set to 1.
2.
Cycle-steal
mode.
3. In burst mode, DREQ = edge detection (external request), or auto-request mode in
burst
mode.
4. 16-byte transfer cycle in progress.
5. End of a 16-byte transfer cycle.
Figure 11.2 DMA Transfer Flow
Содержание SH7616
Страница 10: ...Rev 2 00 Mar 09 2006 page x of xxvi ...
Страница 132: ...Section 2 CPU Rev 2 00 Mar 09 2006 page 106 of 906 REJ09B0292 0200 ...
Страница 568: ...Section 12 16 Bit Free Running Timer FRT Rev 2 00 Mar 09 2006 page 542 of 906 REJ09B0292 0200 ...
Страница 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Страница 662: ...Section 14 Serial Communication Interface with FIFO SCIF Rev 2 00 Mar 09 2006 page 636 of 906 REJ09B0292 0200 ...
Страница 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Страница 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Страница 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Страница 935: ...SH7616 Hardware Manual ...