FDC37B80X SMSC [SMSC Corporation], FDC37B80X Datasheet - Page 69

• Manufacturer Part Number: FDC37B80X
• Description: PC98/99 Compliant Enhanced Super I/O Controller with Keyboard/Mouse Wake-Up
• Manufacturer: SMSC [SMSC Corporation]

MODE
ONLY
BIT 3
FIFO
0
0
0
1
0
0
BIT 2 BIT 1 BIT 0
IDENTIFICATION
0
1
1
1
0
0
INTERRUPT
REGISTER
0
1
0
0
1
0
1
0
0
0
0
0
Table 30 - Interrupt Control Table
Highest
Second
Second
Third
Fourth
PRIORITY
LEVEL
-
INTERRUPT SET AND RESET FUNCTIONS
None
Receiver Line
Status
Received
Data
Available
Character
Timeout
Indication
Transmitter
Holding
Register
Empty
MODEM
Status
INTERRUPT
69
TYPE
None
Overrun Error,
Parity Error,
Framing Error or
Break Interrupt
Receiver Data
Available
No Characters
Have Been
Removed From
or Input to the
RCVR FIFO
during the last 4
Char times and
there is at least 1
char in it during
this time
Transmitter
Holding Register
Empty
Clear to Send or
Data Set Ready
or Ring Indicator
or Data Carrier
Detect
INTERRUPT
SOURCE
Reading the Line
Status Register
Read Receiver
Buffer or the FIFO
drops below the
trigger level.
Reading the
Receiver Buffer
Register
Reading the IIR
Register (if Source
of Interrupt) or
Writing the
Transmitter
Holding Register
Reading the
MODEM Status
Register
RESET CONTROL
INTERRUPT
-