r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1360

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

26. Serial Sound Interface (SSI) Module
(2)
Rev.1.00 Jan. 10, 2008 Page 1330 of 1658
REJ09B0261-0100
Transmission using Interrupt Data Flow Control
Yes
Figure 26.22 Transmission Using Interrupt Data Flow Control
Wait for interrupt from SSI
specify configuration bits
Load data of channel n
enable error interrupts
disable error interrupt,
n = ( (CHNL + 1) x 2)
Wait for Idle interrupt
Disable SSI module,
Enable SSI module,
enable Idle interrupt
from SSI module
Release reset,
Data interrupt?
Next Channel
enable DMA,
disable DMA
to be send?
in SSICR
More data
Loop
Start
End
Yes
No
No
Specify TRMD, EN, SCKD,
SWSD, MUEN, DEL, PDTA,
SDTA, SPDP, SWSP, SCKP,
SWL, DWL, CHNL
EN = 1,
DIEN = 1,
UIEN = 1, OIEN = 1
EN = 0,
DIEN = 0
UIEN = 0, OIEN = 0,
IIEN = 1
Use SSI status register bits
after underflow/overflow
to realign data