Datasheet

Section 14 IEBus™ Controller (IEB) [H8S/2258 Group]
Rev. 6.00 Mar. 18, 2010 Page 516 of 982
REJ09B0054-0600
Bit Bit Name
Initial
Value
R/W Description
2 TxS 0 R/W Transmit Start Detection
Indicates that the IEB starts transmission.
[Setting conditions]
• Master transmission: When the arbitration is won and
when the master address field transmission is
completed
• Slave transmission: When the control bits of H'3 (0011)
or H'7 (0111) is received from the master unit meaning
that data transfer is requested
[Clearing condition]
When writing 0 after reading TxS = 1
1 TxF 0 R/W Transmit Normal Completion
Indicates that data for the number of bytes specified by the
message length bits has been transmitted with no error.
[Setting condition]
When data for the number of bytes specified by the
message length bits has been transmitted normally
[Clearing condition]
When writing 0 after reading TxF = 1