R8A77850BDBGV#RD0Z Renesas Electronics America, R8A77850BDBGV#RD0Z Datasheet - Page 758

• Manufacturer Part Number: R8A77850BDBGV#RD0Z
• Description: IC SUPERH MPU ROMLESS 436BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77850BDBGV#RD0Z

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 600MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 108
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1 V ~ 1.2 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 436-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

14. Direct Memory Access Controller (DMAC)
Rev.1.00 Jan. 10, 2008 Page 726 of 1658
REJ09B0261-0100
Figure 14.20 Example 1 of DREQ Input Detection in Burst Mode Level Detection (Byte
Transfer in 8/16/32/64-Bit Bus Width, Word Transfer in 16/32/64-Bit Bus Width, or
CLKOUT
Bus cycle
DREQ
(Overrun 0, High level)
DRAK (High-active)
DACK (High-active)
CLKOUT
Bus cycle
DREQ
(Overrun 1, High level)
DRAK (High-active)
DACK (High-active)
Longword Transfer in 32/64-Bit Bus Width)
1st acceptance
1st acceptance
: Non-sensitive period
CPU
CPU
DMAC
DMAC
2nd acceptance
Acceptance started
Accepted after one cycle of CLKOUT
at the rising edge of DACK
2nd acceptance
Acceptance started
Accepted after one cycle of CLKOUT
at the falling edge of DACK