r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1362

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

26. Serial Sound Interface (SSI) Module
(1)
Rev.1.00 Jan. 10, 2008 Page 1332 of 1658
REJ09B0261-0100
Reception Using DMA Controller
Note: * When SSI error interrupt occurs (underflow/overflow), back to start
No
Yes
and execute flow again.
Figure 26.23 Reception Using DMA Controller
Setup DMA controller to transfer data
Wait for interrupt from DMAC or SSI
from SSI module to memory
specify configuration bits
enable error interrupts
disable error interrupt,
Wait for idle interrupt
Disable SSI module,
Enable SSI module,
Has DMAC Rx data
enable Idle interrupt
been completed?
from SSI module
to be received?
Error interrupt?
Release reset,
enable DMA,
disable DMA
More data
in SSICR
End*
Start
SSI
No
Yes
No
Yes
Specify TRMD, EN, SCKD,
SWSD, MUEN, DEL, PDTA,
SDTA, SPDP, SWSP, SCKP,
SWL, DWL, CHNL
EN = 1,
DMEN = 1,
UIEN = 1, OIEN = 1
EN = 0,
DMEN = 0
UIEN = 0, OIEN = 0,
IIEN = 1