HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 252

• Manufacturer Part Number: HD64570
• Description: Serial Communications Adaptor
• Manufacturer: HITACHI [Hitachi Semiconductor]

Table 5.23 Interrupts, Interrupt Sources, and Clearing Procedures
Interrupt
Type
TXRDY
interrupt
RXRDY
interrupt
TXINT
interrupt
RXINT
interrupt
Rev. 0, 07/98, page 236 of 453
Interrupt
Status
Bit
TXRDY
RXRDY
TXINT
RXINT
Enable
Bit
TXRDYE
RXRDYE
TXINTE
RXINTE
Interrupt Source
TX ready
RX ready
(1)Underrun error
(2)Transmitter idle
(3)CTS line level
(1)SYN pattern
(2)DCD line level
(3)Break start
(4)Break end
(5)Receive frame end
(6)Parity or MP bit =
(7)Parity error/abort
(8)Framing error
transition
detection/flag
detection
transition
detection/abort
detection
detection/idle start
detection
(ST2)
1/short frame
detection
end frame
detection
detection/residual
bit frame detection
Source
Status Bit
UDRN
IDL
CCTS
SYNCD/
FLGD
CDCD
BRKD/
ABTD
BRKE/
IDLD
EOM*
PMP/
SHRT*
PE/ABT*
FRME/
RBIT*
2
2
2
2
Enable
Bit
UDRNE
IDLE
CCTSE
SYNCDE/
FLGDE
CDCDE
BRKDE/
ABTDE
BRKEE/
IDLDE
EOME
PMPE/
SHRTE
PEE/ABTE
FRMEE/
RBITE
Clearing
Procedure*
1
2
3
4
1