Figure 13.5.5B Error Happened On The Master Side When Master Transmission - Fujitsu F2MC-16LX MB90580 Series Hardware Manual

2. The following is an example when the master transmission, an error is generated at the second byte
data on the master side. The following data is transmitted at the second frame.
Tele. Length
<Trans. Side>
COM
Trans. Buffer
Clear WDB and write data in WDB from the second byte
WDBC
DEER 03H
DEWR
Write
DEWR
<Recep. Side>
Reception until the maximum # of transmit data
COM
The seoond byte error and will not be set at RDB
RDB
DEER
Reception by Tele. Lengh byte

Figure 13.5.5b Error happened on the Master side when master transmission

MB90580 Series
Slave reception movements until the figure
becomes the maximum transmission byte
Data1(00H) DataX(XXH) DataX(XXH)
Transmission completed due to an error
00H
02H
Set 3 bytes transmission
Read DERR and
in DEWR
write the value
03H
Set 3 bytes transmission
XXH 00H
03H
Header
....
DataX(XXH)
02H
Reception by Tele.
Reception of the rest
Lengh byte
of 2 bytes
13.5 Operation
Data Filed
Tele. Length Data2(01H) Data3(02H)
01H 02H
DEWR's value is set
02H
Transmits the all data normally
02H
Set DERR's value
01H
02H
Transmits the all
data normally
Chapter 13: IE Bus
00H
00H
00H
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