R8A77850ANBGV Renesas Electronics America, R8A77850ANBGV Datasheet - Page 756

• Manufacturer Part Number: R8A77850ANBGV
• Description: IC SUPERH MPU ROMLESS 436-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77850ANBGV

• 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: -20°C ~ 75°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 724 of 1658
REJ09B0261-0100
(Word Transfer in 8-Bit Bus Width, Longword Transfer in 8/16-Bit Bus Width, 16/32-Byte
Figure 14.17 Example 2 of DREQ Input Detection in Cycle Steal Mode Level Detection
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)
Transfer in 8/16/32/64-Bit Bus Width: DACK of DMA1 Transfer Divided)
1st acceptance
1st acceptance
: Non-sensitive period
: Non-sensitive period
CPU
CPU
2nd acceptance
DMAC
DMAC
Acceptance started
Accepted after one cycle of CLKOUT
at the first rising edge of the divided-up DACK
2nd acceptance
Acceptance started
Accepted after one cycle of CLKOUT
at the first falling edge of the divided-up DACK
CPU
CPU