R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 936

• Manufacturer Part Number: R0K572030S000BE
• Description: KIT DEV FOR SH7203
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K572030S000BE

• Contents: CPU Board, LCD Module, E10A-Lite Emulator, Cable, QuickStart Guide and CD-ROM
• Silicon Manufacturer: Renesas
• Kit Contents: Board
• Silicon Family Name: SH7203
• Silicon Core Number: R5S72030W200FP
• Tool / Board Applications: General Purpose MCU, MPU, DSP, DSC
• Mcu Supported Families: SH7203
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: SH7203
• Lead Free Status / Rohs Status: Compliant

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