Filter
Top Products
RL78/G1A CHAPTER 12 SERIAL ARRAY UNIT
R01UH0305EJ0200 Rev.2.00 484
Jul 04, 2013
Figure 12-61. Flowchart of Slave Reception (in Single-Reception Mode)
Starting CSI communication
Write 1 to STmn bit
Reception completed?
No
Yes
End of communication
Reading receive data from
SIOp (=SDRmn[7:0])
For the initial setting, see Figure 12-58.
(Select transfer end interrupt only)
SAU default setting
Start communication when master start providing
the clock
When transmit end, interrupt is generated
Wait for receive completes
RETI
Transfer end interrupt
Read receive data then writes to storage area, and counts
up the number of receive data.
Update receive data pointer.
Check completion of number of receive data
Ready for reception
Clear storage area setting and the number of receive data
(Storage area, Reception data pointer, Number of communication data and
Communication end flag are optionally set on the internal RAM by the software)
Enables interrupt
Clear interrupt request flag (XXIF), reset interrupt mask (XXMK) and set
interrupt enable (EI).
Disable interrupt (MASK)
Main routine
Main routine
Interrupt processing routine
Remark m: Unit number (m = 0, 1), n: Channel number (n = 0 to 3), p: CSI number (p = 00, 01, 10, 11, 20, 21),
mn = 00 to 03, 10, 11
<R>