Datasheet

Section 14 IEBus™ Controller (IEB) [H8S/2258 Group]
Rev. 6.00 Mar. 18, 2010 Page 539 of 982
REJ09B0054-0600
Dn H MA SA CF LF D1 D2 Dn-1Dn-1LF Dn
IECMR
CMX
MRQ
SRQ
SRE
TxRDY
TxS
TxF
IETxI (TxRDY)
(TO DTC)
IETxI (TxRDY)
(TO CPU)
IETSI
(TO CPU)
IEFLG
IETSR
Interrupt
(1)
(2)
(2)
(3)
(3)
(7)
(8)
(8)
(8)
(4) (5) (6)
(4) (5) (6)
Slave reception Slave transmission
H: Header, MA: Master address field, SA: Slave address field,
CF: Control field, LF: Message length field, D1, D2,..., Dn-1, Dn: Data field
DTC transfer
of 2nd byte
DTC transfer
of 3rd byte
DTC transfer
of nth byte
Cleared to 0 byt DTC transfer of 1st byte
Slave transmission request
Figure 14.12 Slave Transmit Operation Timing