UPD72042BGT NEC [NEC], UPD72042BGT Datasheet - Page 75

• Manufacturer Part Number: UPD72042BGT
• Description: LSI DEVICE FOR Inter Equipment Bus (IEBus) PROTOCOL CONTROL
• Manufacturer: NEC [NEC]

(2) Master transmission processing routine 2
Fig. 6-7 shows the flow of master transmission processing routine 2.
Fig. 6-7 Flow of Master Transmission Processing Routine 2
TBF
1
1
I >
Transmission data (I-th byte)
CMR
Number of bytes
in tranmission data
MTRQF
Read STR
Read FLG
Read FLG
I
TFL?
CEX?
CEX?
Start
End
I + 1
00001001
0
N
0
0
1
Data Sheet S13990EJ3V0DS
1
; Waiting for terminaton of previous command?
; Set master communication continuation command.
;
Waiting for termination of processing of master
communication continuation command?
Y
;
Setting tranmission data
in TBF completed?
PD72042B
75