SH7032 Datasheet, PDF (244/687 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 9 Direct Memory Access Controller (DMAC)
9.4.2 Example of DMA Transfer between On-Chip SCI and External Memory
In this example, receive data of on-chip serial communication interface (SCI) channel 0 is
transferred to external memory using DMAC channel 3. Table 9.8 shows the transfer conditions
and register settings.
Table 9.8 Transfer Conditions and Register Settings for Transfer between On-Chip SCI
and External Memory
Transfer Conditions
Transfer source: RDR0 of on-chip SCI0
Transfer destination: external memory
Number of transfers: 64
Transfer destination address: incremented
Transfer source address: fixed
Transfer request source (transfer request signal): SCI0 (RXI0)
Bus mode: cycle-steal
Transfer unit: byte
DEI interrupt request generated at end of transfer (channel 3
enabled for transfer)
Channel priority order: fixed (0 > 3 > 2 > 1) (all channels
enabled for transfer)
Register
SAR3
DAR3
TCR3
CHCR3
DMAOR
Setting
H'FFFFEC5
Destination address
H'0040
H'4405
H'0001
Rev. 7.00 Jan 31, 2006 page 218 of 658
REJ09B0272-0700