HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 494

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 10
Rev. 3.00 Jan. 18, 2008 Page 432 of 1458
REJ09B0033-0300
(1) When channel 0 transfers
(2) When channel 1 transfers
(3) When channel 2 transfers
(4) When channel 5 transfers
Initial priority order
Priority order
after transfer
Initial priority order
Priority order
after transfer
Initial priority order
Priority order
after transfer
Post-transfer priority order
when there is an
immediate transfer
request to channel 5 only
Initial priority order
Priority order
after transfer
Direct Memory Access Controller (DMAC)
CH0 > CH1 > CH2 > CH3 > CH4 > CH5
CH0 > CH1 > CH2 > CH3 > CH4 > CH5
CH0 > CH1 > CH2 > CH3 > CH4 > CH5
CH0 > CH1 > CH2 > CH3 > CH4 > CH5
CH0 > CH1 > CH2 > CH3 > CH4 > CH5
CH3 > CH4 > CH5 > CH0 > CH1 > CH2
CH2 > CH3 > CH4 > CH5 > CH0 > CH1
CH1 > CH2 > CH3 > CH4 > CH5 > CH0
Figure 10.3
CH0 > CH1 > CH2 > CH3 > CH4 > CH5
Round-Robin Mode
Channel 0 becomes bottom
priority
Channel 1 becomes bottom
priority.
The priority of channel 0, which
was higher than channel 1, is also
shifted.
Channel 2 becomes bottom
priority.
The priority of channels 0 and 1,
which were higher than channel 2,
are also shifted. If immediately
after there is a request to transfer
channel 5 only, channel 5 becomes
bottom priority and the priority of
channels 3 and 4, which were
higher than channel 5, are also
shifted.
Priority order does not change.