PD72042B_15 Datasheet, PDF (83/92 Pages) Renesas Technology Corp – LSI DEVICE FOR Inter Equipment BusTM (IEBusTM) PROTOCOL CONTROL

6.4.7 Reception Processing Routine
This routine is executed when RERQ has been set by the interrupt routine.
Fig. 6-12 shows the flow of the reception processing routine.
Fig. 6-12 Flow of Reception Processing Routine
Start
µPD72042B
Y
J>SIZER?
N
Read RBF
J← J + 1
RECFR?
××00
××10 or ××11
; Reception terminated
normally or suspended?
J← 1
Increment PR
; Initialize J.
End 2^{Note 2}
End 1^{Note 1}
Notes 1. Indicates that reception of the communication frame has ended (terminated normally or suspended).
2. Indicates that reading of the reception data has been completed with the current RBF.
Data Sheet S13990EJ3V0DS
81