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

RZ/A1L Group, RZ/A1LU Group, RZ/A1LC Group
22.5.6

Master reception (FIFO mode)

Table 22-48 Standard initial processing
Register name
IEBBnSAR
IEBBnCDR or IEBBnTCD
Table 22-49 Communication startup processing
Register name
IEBBnBCR
Start
IEBBTSTA
Note No start interrupt occurs.
IEBBTV
IEBBTD
Figure 22-24 Interrupt occurrence timing
R01UH0437EJ0600 Rev.6.00
Jan 29, 2021
The unit receives data and commands from the slave unit as the master. Because the
slave transfers the message length field in the case of master reception, indicate the
message length of data to be transmitted to the slave, such as during other
communication.
(1) Register settings
After specifying the initial settings in 22.5.2 Initial settings, set up the registers
below before starting communication.
Communication partner unit address
Control data (0H, 3H, 4H, 5H, 6H, 7H)
Communication startup processing
(2) Interrupt occurrence timing
Broad
M address P Control
S address P A
cast
Note A data interrupt occurs at the timing specified by
Function
Function
Message
P A P A Data 1 P A
length
the IEBBnTMS.IEBBnSLTI1 and IEBBnSLTI0 bits.
Note
No data interrupt occurs.
22. IEBus Controller
Example
102H
7H
Example
C8H
... Data m P A ... Data n
Reception end
interrupt
Reception end
interrupt
P A
22-88