Section 11 Direct Memory Access Controller (DMAC)
Rev. 2.00 Mar 09, 2006 page 473 of 906
REJ09B0292-0200
11.2.6
DMA Request/Response Selection Control Registers 0 and 1 (DRCR0, DRCR1)
Bit:
7
6
5
4
3
2
1
0
—
—
—
RS4
RS3
RS2
RS1
RS0
Initial value:
0
0
0
0
0
0
0
0
R/W:
R
R
R
R/W
R/W
R/W
R/W
R/W
DMA request/response selection control registers 0 and 1 (DRCR0, DRCR1) are 8-bit read/write
registers that set the DMAC transfer request source. They are written as 8-bit values. They are
initialized to H'00 by a reset, but retain their values in standby mode and a module standby.
Bits 7 to 5—Reserved: These bits are always read as 0. The write value should always be 0.
Bits 4 to 0—Resource Select Bits 4 to 0 (RS4–RS0): Specify which transfer request to input to the
DMAC. Changing the transfer request source must be done when the DMA enable bit (DE) is 0.
See section 11.3.4, DMA Transfer Types, for the possible setting combinations.
Bits RS4 to RS0 are initialized to 001 by a reset.
Bit 4:
RS4
Bit 3:
RS3
Bit 2:
RS2
Bit 1:
RS1
Bit 0:
RS0
Description
0
0
0
0
0
DREQ (external request)
(Initial value)
1
Reserved (setting prohibited)
1
0
Reserved (setting prohibited)
1
Reserved (setting prohibited)
1
0
0
Reserved (setting prohibited)
1
SCIF channel 1 RXI (on-chip SCI with FIFO channel
1 receive-data-full interrupt request)
*
1
0
SCIF channel 1 TXI (on-chip SCI with FIFO channel
1 transmit-data-empty interrupt request)
*
1
1
1
Reserved (setting prohibited)
Summary of Contents for SH7616
Page 10: ...Rev 2 00 Mar 09 2006 page x of xxvi ...
Page 132: ...Section 2 CPU Rev 2 00 Mar 09 2006 page 106 of 906 REJ09B0292 0200 ...
Page 568: ...Section 12 16 Bit Free Running Timer FRT Rev 2 00 Mar 09 2006 page 542 of 906 REJ09B0292 0200 ...
Page 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Page 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Page 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Page 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Page 935: ...SH7616 Hardware Manual ...