Section 11 Direct Memory Access Controller (DMAC)
Rev. 2.00 Mar 09, 2006 page 466 of 906
REJ09B0292-0200
11.2
Register Descriptions
11.2.1
DMA Source Address Registers 0 and 1 (SAR0, SAR1)
Bit:
31
30
29
…
3
2
1
0
…
Initial value:
—
—
—
…
—
—
—
—
R/W:
R/W
R/W
R/W
…
R/W
R/W
R/W
R/W
DMA source address registers 0 and 1 (SAR0 and SAR1) are 32-bit read/write registers that
specify the source address of a DMA transfer. During a DMA transfer, these registers indicate the
next source address. (In single-address mode, SAR is ignored in transfers from external devices
with DACK to memory-mapped external devices or external memory). In 16-byte unit transfers,
always set the value of the source address to a 16-byte boundary (16n address). Operation results
cannot be guaranteed if other values are used. Transmission in 16-byte units can be set only in
auto-request mode and at edge detection in external request mode. Values are retained in a reset, in
standby mode, and when the module standby function is used.
11.2.2
DMA Destination Address Registers 0 and 1 (DAR0, DAR1)
Bit:
31
30
29
…
3
2
1
0
…
Initial value:
—
—
—
…
—
—
—
—
R/W:
R/W
R/W
R/W
…
R/W
R/W
R/W
R/W
DMA destination address registers 0 and 1 (DAR0 and DAR1) are 32-bit read/write registers that
specify the destination address of a DMA transfer. During a DMA transfer, these registers indicate
the next destination address. (In single-address mode, DAR is ignored in transfers from memory-
mapped external devices or external memory to external devices with DACK). In 16-byte unit
transfers, always set the value of the source address to a 16-byte boundary (16n address).
Operation results cannot be guaranteed if other values are used. Transmission in 16-byte units can
be set only in auto-request mode and at edge detection in external request mode. Values are
retained in a reset, in standby mode, and when the module standby function is used.
If synchronous DRAM is accessed when performing 16-byte-unit transfer, a 16-byte boundary
(address 16n) value must be set for the destination address.
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 ...