FDC37C669_07 SMSC [SMSC Corporation], FDC37C669_07 Datasheet - Page 76

• Manufacturer Part Number: FDC37C669_07
• Description: PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support
• 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
Highest
Second
Second
Third
Fourth
Table 32 - Interrupt Control Table
PRIORITY
LEVEL
-
INTERRUPT SET AND RESET FUNCTIONS
None
Receiver Line
Status
Received Data
Available
Character
Timeout
Indication
Transmitter
Holding
Register
Empty
MODEM
Status
INTERRUPT
76
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
-