HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 525
HD6417712BPV
Manufacturer Part Number
HD6417712BPV
Description
MPU 1.5/3.3V 0K PB-FREE 256-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH Ethernetr
Datasheet
1.HD6417712BPV.pdf
(980 pages)
Specifications of HD6417712BPV
Core Processor
SH-3 DSP
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, Ethernet, FIFO, SCI, SIO
Peripherals
DMA, POR, WDT
Number Of I /o
24
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
256-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417712BPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Figure 13.4 shows how the priority order changes when channel 0 and channel 3 transfers are
requested simultaneously and a channel 1 transfer is requested during the channel 0 transfer. The
DMAC operates as follows:
1. Transfer requests are generated simultaneously to channels 0 and 3.
2. Channel 0 has a higher priority, so the channel 0 transfer begins first (channel 3 waits for
3. A channel 1 transfer request occurs during the channel 0 transfer (channels 1 and 3 are both
4. When the channel 0 transfer ends, channel 0 becomes lowest priority.
5. At this point, channel 1 has a higher priority than channel 3, so the channel 1 transfer begins
6. When the channel 1 transfer ends, channel 1 becomes lowest priority.
7. The channel 3 transfer begins.
8. When the channel 3 transfer ends, channels 3 and 2 shift downward in priority so that channel
transfer).
waiting)
(channel 3 waits for transfer).
3 becomes the lowest priority.
Transfer request
(1) Channels 0 and 3
Figure 13.4 Changes in Channel Priority in Round-Robin Mode
(3) Channel 1
Waiting channel(s) DMAC operation
1,3
3
3
None
(2) Channel 0 transfer
(4) Channel 0 transfer
(5) Channel 1 transfer
(6) Channel 1 transfer
(7) Channel 3 transfer
(8) Channel 3 transfer
start
ends
starts
ends
starts
ends
Section 13 Direct Memory Access Controller (DMAC)
Priority order
changes
Priority order
changes
Priority order
changes
Rev. 1.00 Dec. 27, 2005 Page 481 of 932
Channel priority
0 > 1 > 2 > 3 > 4 > 5
1 > 2 > 3 > 4 > 5 > 0
2 > 3 > 4 > 5 > 0 > 1
4 > 5 > 0 > 1 > 2 > 3
REJ09B0269-0100
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