HD6417034B RENESAS [Renesas Technology Corp], HD6417034B Datasheet - Page 243
HD6417034B
Manufacturer Part Number
HD6417034B
Description
32-Bit RISC Microcomputer
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417034B.pdf
(687 pages)
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9.4
9.4.1
In the following example, data is transferred from on-chip RAM to a memory-mapped external
device with an input capture A/compare match A interrupt (IMIA0) from channel 0 of the 16-bit
integrated timer pulse unit (ITU) as the transfer request signal. The transfer is performed by
DMAC channel 3. Table 9.7 shows the transfer conditions and register values.
Table 9.7
Transfer Conditions
Transfer source: on-chip RAM
Transfer destination: memory-mapped external device
Number of transfers: 8
Transfer destination address: fixed
Transfer source address: incremented
Transfer request source (transfer request signal): ITU channel
0 (IMIA0)
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)
Examples of Use
DMA Transfer between On-Chip RAM and Memory-Mapped External Device
Transfer Conditions and Register Settings for Transfer Between On-Chip RAM
and Memory-Mapped External Device
Section 9 Direct Memory Access Controller (DMAC)
Rev. 7.00 Jan 31, 2006 page 217 of 658
SAR3
DAR3
CHCR3
DMAOR
Register
TCR3
Setting
H'FFFFE00
Destination address
H'0008
H'1805
H'0001
REJ09B0272-0700
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