Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
4190
Datasheet
27.6.3
Interrupt Identification Register and FIFO Control Register.
(IIR_FCR)—Offset 8h
Register is used for different purposes depending on the mode. See description details
Interrupt ID [3:0] 0001: No Interrupt Pending 0110: Receiver Line Status (1st Priority)
0100: Receiver Data Available (2nd Priority) 1100: Character Timeout (2nd Priority)
0010: THR Empty (3rd Priority) 0000: Modem Status (4th Priority) 0111: Busy Detect
Indication (5th Priority)
Access Method
Default: 00000001h
31
28
24
20
16
12
8
4
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
RSVD
0
PT
IM
E
_
dl
h
7
RSVD
1
ED
S
S
I_
d
lh3
EL
SI_dhl
2
ETB
E
I_dlh
1
ER
B
FI_
d
lh0
Bit
Range
Default &
Access
Field Name (ID): Description
31:8
0b
RO
RSVD0:
Reserved
7
0h
RW
PTIME_dlh7:
PTIME (PTIME)
This is used to enable/disable the generation of THRE Interrupt.
0 = disabled
1 = enabled
6:4
0b
RO
RSVD1:
Reserved
3
0h
RW
EDSSI_dlh3:
EDSSI (Enable Modem Status Interrupt)
This is used to enable/disable the generation of Modem Status Interrupt. This is the
fourth highest priority interrupt.
0 = disabled
1 = enabled
2
0h
RW
ELSI_dhl2:
ELSI (Enable Line Status Interrupt)
This is used to enable/disable the generation of Receiver Line Status Interrupt. This is
the highest priority interrupt.
0 = disabled
1 = enabled
1
0h
RW
ETBEI_dlh1:
ETBEI (Enable Transmit Holding Register Empty Interrupt)
This is used to enable/disable the generation of Transmitter Holding Register Empty
Interrupt. This is the third highest priority interrupt.
0 = disabled
1 = enabled
0
0h
RW
ERBFI_dlh0:
ERBFI (Enable Received Data Available Interrupt)
This is used to enable/disable the generation of Received Data Available Interrupt and
the Character Timeout Interrupt (if in FIFO mode and FIFOs enabled). These are the
second highest priority interrupts.
0 = disabled
1 = enabled
Type:
Memory Mapped I/O Register
(Size: 32 bits)
Offset:
BAR Type:
PCI Configuration Register (Size: 32 bits)
BAR Reference:
[B:0, D:30, F:3] + 10h