DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 936
DS72030W200FPV
Manufacturer Part Number
DS72030W200FPV
Description
MPU, 32BIT, SH7203, ROMLESS, 240QFP
Manufacturer
Renesas Electronics America
Series
SH7200r
Datasheet
1.R5S72030W200FP.pdf
(1686 pages)
Specifications of DS72030W200FPV
Core Size
32bit
Program Memory Size
32KB
Cpu Speed
200MHz
Digital Ic Case Style
QFP
No. Of Pins
240
Supply Voltage Range
1.1V To 1.3V
Operating Temperature Range
-20°C To +85°C
Svhc
No SVHC
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Section 18 Serial Sound Interface (SSI)
18.4.4
Transmit Operation
Transmission can be controlled either by DMA or interrupt.
DMA control is preferred to reduce the processor load. In DMA control mode the processor will
only receive interrupts if there is an underflow or overflow of data or the DMAC has finished its
transfer.
The alternative method is using the interrupts that the SSI module generates to supply data as
required. This mode has a higher interrupt load as the module is only double buffered and will
require data to be written at least every system word period.
When disabling the module, the SSI clock* must remain present until the SSI module is in idle
state, indicated by the IIRQ bit.
Figure 18.20 shows the transmit operation in DMA control mode, and figure 18.21 shows the
transmit operation in interrupt control mode.
Note: * Input clock from the SSISCK pin when SCKD = 0.
Oversampling clock when SCKD = 1.
Rev. 3.00 Sep. 28, 2009 Page 904 of 1650
REJ09B0313-0300
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