Master Transmission (Fifo Mode) - Renesas RZ/A Series User Manual

RZ/A1L Group, RZ/A1LU Group, RZ/A1LC Group
22.6.2

Master transmission (FIFO mode)

START
Set up the IEBBnPSR, IEBBnUAR,
IEBBnCKS, and IEBBnTMS registers.
Set the IEBBnBCR register to 80H.
Set up the IEBBnSAR, IEBBnCDR
(or IEBBnTCD), IEBBnTDL, IEBBnDR
(data of 32 bytes or less) registers.
Set the IEBBnBCR register to C8H (separate communication)
or the IEBBnBCR register to E8H (broadcast communication).
Has IEBBTD occurred?
Has IEBBTSTA
occurred (IEBBTV)?
End interrupt servicing
(See 22.5.4 (3) "Interrupt servicing example".)
END
Figure 22-45 Master transmission (FIFO mode)
R01UH0437EJ0600 Rev.6.00
Jan 29, 2021
: Initial settings
: Master request
Yes
: Data interrupt occurrence check
No
No
: End interrupt occurrence check
Yes
Write the transmission data to
the IEBBnDR register.
22. IEBus Controller
: Write the
transmission data
remaining in the
FIFO buffer in order.
22-100