Interrupt listing, Interrupt listing -5 – Cirrus Logic EP73xx User Manual
Page 51

EP7309/11/12 User’s Manual - DS508UM4
4-5
Copyright Cirrus Logic, Inc. 2003
Interrupt Controller
44
4
Interrupt Listing
,
, and
show the names and allocation of interrupts in the
EP73xx.
Table 4-4: Interrupt Allocation in the First Interrupt Register
Interrupt
Bit in INTMR1
and INTSR1
Name
Comment
FIQ
0
EXTFIQ
External fast interrupt input (nEXTFIQ pin)
FIQ
1
BLINT
Battery low interrupt
FIQ
2
WEINT
Tick Watchdog expired interrupt
FIQ
3
MCINT
Media changed interrupt
IRQ
4
CSINT
CODEC sound interrupt
IRQ
5
EINT1
External interrupt input 1 (nEINT[1] pin)
IRQ
6
EINT2
External interrupt input 2 (nEINT[2] pin)
IRQ
7
EINT3
External interrupt input 3 (EINT[3] pin)
IRQ
8
TC1OI
TC1 underflow interrupt
IRQ
9
TC2OI
TC2 underflow interrupt
IRQ
10
RTCMI
RTC compare match interrupt
IRQ
11
TINT
64 Hz tick interrupt
IRQ
12
UTXINT1
Internal UART1 transmit FIFO empty interrupt
IRQ
13
URXINT1
Internal UART1 receive FIFO full interrupt
IRQ
14
UMSINT
Internal UART1 modem status changed interrupt
IRQ
15
SSEOTI
Synchronous serial interface 1 end of transfer interrupt
Table 4-5: Interrupt Allocation in the Second Interrupt Register
Interrupt
Bit in INTMR2 and
INTSR2
Name
Comment
IRQ
0
KBDINT
Key press interrupt
IRQ
1
SS2RX
Master / slave SSI 16 bytes received
IRQ
2
SS2TX
Master / slave SSI 16 bytes transmitted
IRQ
12
UTXINT2
UART2 transmit FIFO empty interrupt
IRQ
13
URXINT2
UART2 receive FIFO full interrupt
Table 4-6: Interrupt Allocation in the Third Interrupt Register
Interrupt
Bit in INTMR3 and
INTSR3
Name
Comment
FIQ
0
DAIINT
DAI interface interrupt