HD6413003RVF RENESAS [Renesas Technology Corp], HD6413003RVF Datasheet - Page 242

• Manufacturer Part Number: HD6413003RVF
• Description: microcontroller (MCU)
• Manufacturer: RENESAS [Renesas Technology Corp]

Figure 8-20 shows the timing when channel 0A is set up for I/O mode and channel 2 for burst
mode, and a transfer request for channel 0A is received while channel 2 is active.
If cycle-steal mode is selected in both groups 0 and 1, the DMAC may activate channels in these
two groups alternately without passing the bus right to the CPU.
ø
A
RD
HWR
23
to A
,
LWR
0
Figure 8-20 Timing of Multiple-Channel Operations in Different Groups
DMAC cycle
(channel 2)
T
1
T
2
T
d
T
1
DMAC cycle
(channel 0A)
T
2
224
T
1
T
2
T
d
T
DMAC cycle (channel 2)
1
T
2
T
1
T
2
T
1
T
2