R8A77850AADBGV Renesas Electronics America, R8A77850AADBGV Datasheet - Page 1360
R8A77850AADBGV
Manufacturer Part Number
R8A77850AADBGV
Description
IC SUPERH MCU 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
Specifications of R8A77850AADBGV
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R8A77850AADBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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26. Serial Sound Interface (SSI) Module
26.4.5
Transmit Operation
Transmission can be controlled in one of two ways: either DMA or an interrupt driven.
DMA driven is preferred to reduce the CPU load. In DMA control mode, an underflow or
overflow of data or DMAC transfer end is notified by using an interrupt.
The alternative is using the interrupts that the SSI module generates to supply data as required.
This mode has a higher interrupt load as the SSI module is only double buffered and will require
data to be written at least every system word period.
When disabling the SSI module, the SSI clock* must be supplied continuously until the module
enters in the idle state, indicated by the IIRQ bit.
Figure 26.21 shows the transmit operation in the DMA controller mode. Figure 26.22 shows the
transmit operation in the interrupt controller mode.
Note: * SCKD = 0: Clock input through the SSI_SCK pin
SCKD = 1: Clock input through the SSI_CLK pin
Rev.1.00 Jan. 10, 2008 Page 1328 of 1658
REJ09B0261-0100
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