HD6417750SF200V Renesas Electronics America, HD6417750SF200V Datasheet - Page 661

• Manufacturer Part Number: HD6417750SF200V
• Description: MPU 3V 16K PB-FREE 208-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417750SF200V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 28
• Program Memory Type: ROMless
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 2.07 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

1. Transfer requests are issued simultaneously for channels 0 and 3.
2. Since channel 0 has a higher priority level than channel 3, the channel 0 transfer is executed
3. A transfer request is issued for channel 1 during the channel 0 transfer (channels 1 and 3 are on
4. At the end of the channel 0 transfer, channel 0 shifts to the lowest priority level.
5. At this point, channel 1 has a higher priority level than channel 3, so the channel 1 transfer is
6. At the end of the channel 1 transfer, channel 1 shifts to the lowest priority level.
7. The channel 3 transfer is started.
8. At the end of the channel 3 transfer, the channel 3 and channel 2 priority levels are lowered,
first (channel 3 is on transfer standby).
transfer standby).
started (channel 3 is on transfer standby).
giving channel 3 the lowest priority.
Figure 14.4 Example of Changes in Priority Order in Round Robin Mode
Transfer request
1. Issued for channels 0
3. Issued for channel 1
and 3
Channel
waiting
3
1, 3
3
None
Section 14 Direct Memory Access Controller (DMAC)
2. Start of channel 0
4. End of channel 0
5. Start of channel 1
6. End of channel 1
7. Start of channel 3
8. End of channel 3
DMAC operation
transfer
transfer
transfer
transfer
transfer
transfer
Rev.7.00 Oct. 10, 2008 Page 575 of 1074
Change of
priority order
Change of
priority order
Change of
priority order
Channel priority
0 > 1 > 2 > 3
1 > 2 > 3 > 0
2 > 3 > 0 > 1
0 > 1 > 2 > 3
order
REJ09B0366-0700