参数资料
型号: 37C669
厂商: SMSC Corporation
英文描述: DIODE SCHOTTKY SINGLE 25V 200mW 0.5V-vf 200mA-IFM 30mA-IF 2uA-IR SOD-323 3K/REEL
中文描述: 电脑98/99顺从超级I / O软盘控制器与红外线支持
文件页数: 139/164页
文件大小: 621K
代理商: 37C669
76
Table 32 - Interrupt Control Table
FIFO
MODE
ONLY
INTERRUPT
IDENTIFICATION
REGISTER
INTERRUPT SET AND RESET FUNCTIONS
BIT 3
BIT 2
BIT 1
BIT 0
PRIORITY
LEVEL
INTERRUPT
TYPE
INTERRUPT
SOURCE
INTERRUPT
RESET CONTROL
0
1
-
None
-
0
1
0
Highest
Receiver Line
Status
Overrun Error,
Parity Error,
Framing Error or
Break Interrupt
Reading the Line
Status Register
0
1
0
Second
Received Data
Available
Receiver Data
Available
Read Receiver
Buffer or the FIFO
drops below the
trigger level.
1
0
Second
Character
Timeout
Indication
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
Reading the
Receiver Buffer
Register
0
1
0
Third
Transmitter
Holding
Register
Empty
Transmitter
Holding Register
Empty
Reading the IIR
Register (if Source
of Interrupt) or
Writing the
Transmitter
Holding Register
0
Fourth
MODEM
Status
Clear to Send or
Data Set Ready
or Ring Indicator
or Data Carrier
Detect
Reading the
MODEM Status
Register
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