SH7729R Datasheet, PDF (428/855 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

Bits 11 to 8—Resource Select Bits 3 to 0 (RS3 to RS0): Specify which transfer requests will be
sent to the DMAC.
Bit 11: Bit 10: Bit 9: Bit 8:
RS3 RS2 RS1 RS0 Description
0
0
0
0
External request^*, dual address mode
(Initial value)
0
0
0
1
Setting prohibited
0
0
1
0
External request / Single address mode
External address space → external device with DACK
0
0
1
1
External request / Single address mode
External device with DACK → external address space
0
1
0
0
Auto request
0
1
0
1
Setting prohibited
0
1
1
0
Setting prohibited
0
1
1
1
Setting prohibited
1
0
0
0
Setting prohibited
1
0
0
1
Setting prohibited
1
0
1
0
IrDA transmission
1
0
1
1
IrDA reception
1
1
0
0
SCIF transmission
1
1
0
1
SCIF reception
1
1
1
0
Internal A/D
1
1
1
1
CMT
Notes: When using 16-byte transfer, the following settings must not be made:
1010 IrDA transmission
1011 IrDA reception
1100 SCIF transmission
1101 SCIF reception
1110 A/D converter
1111 CMT
Operation is not guaranteed if these settings are made.
* External request specification is valid only in channels 0 and 1. None of the request
sources can be selected in channels 2 and 3.
Rev. 5.0, 09/03, page 382 of 806