H8S2258 Datasheet, PDF (626/1071 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

Section 14 IEBus™ Controller (IEB) [H8S/2258 Group]
14.5 Interrupt Sources
Figures 14.13 and 14.14 show the transmit and receive interrupt sources, respectively.
DTC
IETxI (TxRDY interrupt)
IETSR
TxRDY
IRA
IEIET
TxRDYE
IRAE
TxS
CPU
IETSI
(Transmit status
interrupt)
TxF
(*)
TxE
TxSE
TxFE
IETEF
AL
UE
TTME
TxEE
RO
ACK
Note: * The TxE flag is set at the timing when an error source of IETEF occurs. The TxE flag can be cleared even
when the error source flag in IETEF is set to 1 because the TxE flag is not logically ORed with flags in IETEF.
Figure 14.13 Relationships among Transfer Interrupt Sources
DTC
IERxI (RxRDY interrupt)
IERSR
RxRDY
IEIER
RxRDYE
RxS
CPU
IERSI
(Transmit status
interrupt)
RxSE
RxF
(*)
RxE
RxFE
IEREF
OVE
RTME
RxEE
DLE
PE
Note: * The RxE flag is set at the timing when an error source of IEREF occurs. The RxE flag can be cleared even
when the error source flag in IEREF is set to 1 because the RxE flag is not logically ORed with flags in IEREF.
Figure 14.14 Relationships among Receive Interrupt Sources
Rev. 5.00 Aug 08, 2006 page 540 of 982
REJ09B0054-0500