HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 1044

• Manufacturer Part Number: HD6417751RF240V
• Description: MPU 1.5/3.3V 0K PB-FREE 256-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417751RF240V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 240MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-QFP Exposed Pad, 256-eQFP, 256-HQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

22. PCI Controller (PCIC)
Rev.4.00 Oct. 10, 2008 Page 944 of 1122
REJ09B0370-0400
After DMA transfer completion, the DMASTRT bit of the PCIDCR register is
cleared to 0, and the DMAIS bit of the PCIDCR register is set to 1.
Yes
Transfer count decrement
Transfer address update
DMA transfer (⇔ FIFO)
DMA transfer start
DMASTOP = 1?
error detected?
Figure 22.6 Example of DMA Transfer Flowchart
Normal ending
PCIDTC > 0?
DMAST = 0
Is transfer
No
No
No
Yes
Yes
DMA transfer starts when 1 is set in the DMASTRT
bit of the PCIDCR register.
The PCIDPA and PCIDLA registers are updated
(increment/fixed) by the LAHOLD bit of the
PCIDCR register.
The PCIDTC decrements at a rate equaling the
number of transfer bytes (4 bytes).
Abnormal ending
DMAST = 1
DMA transfer is forcibly
stopped when 1 is set in the
DMASTOP bit of the PCIDCR
register. (Do not set 1 in the
DMASTRT bit at the same
time.)