R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 648

• Manufacturer Part Number: R8A77800ANBGAV
• Description: IC SUPERH MPU ROMLESS 449-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77800ANBGAV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 75
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 449-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 14 Direct Memory Access Controller (DMAC)
Auto request, external request, and peripheral module request are available for the transfer request.
DACK can be output in read cycle or write cycle in dual address mode. CHCR can specify
whether the DACK is output in read cycle or write cycle.
Figure 14.5 shows an example of DMA transfer timing in dual address mode.
CLKOUT
Transfer source
Transfer destination
A25 to A0
address
address
CSn
D31 to D0
RD
WE
DACK
Low-active
Data read cycle
Data write cycle
(1st cycle)
(2nd cycle)
Note: In transfer between external memories, with DACK output in the read cycle,
DACK output timing is the same as that of CSn.
Figure 14.5 Example of DMA Transfer Timing in Dual Address Mode
(Source: Ordinary Memory, Destination: Ordinary Memory)
Rev.1.00 Dec. 13, 2005 Page 596 of 1286
REJ09B0158-0100