UPD72042BGT NEC [NEC], UPD72042BGT Datasheet - Page 78

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

78
TBF
TBF
1
1
Number of bytes in transmission data
I > Number of bytes in
Transmission data (I-th byte)
Fig. 6-9 Flow of Slave Data Transmission Processing Routine 1
CMR
tranmission data
Read STR
Read FLG
Read FLG
Read STR
I
I
TEP?
CEX?
CEX?
TFL?
Start
00010000
I + 1
0
N
0
0
1
0
1
1
Data Sheet S13990EJ3V0DS
Y
1
; Waiting for termination of previous command?
; Set clear command for transmission buffer.
; Waiting for termination of processing of
; Initialize I.
CMR
transmission buffer clear command?
STRQF
Read FLG
CEX?
End
00001011
0
; Setting of tranmission data in TBF
completed?
1
; Set slave data transmission
request command.
PD72042B