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參數(shù)資料
| 型號： | DM560P |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set |
| 中文描述： | .90綜合數(shù)據(jù)/傳真/語音/揚聲器調制解調器設備集 |
| 文件頁數(shù)： | 12/43頁 |
| 文件大小： | 242K |
| 代理商： | DM560P |
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DM560P
V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set
12
Preliminary
Version: DM560P-DS-P07
August 11, 2000
Interrupt Identification Register (IIR): Address 2 (continued)
D3
0
0
D2
0
1
D1
0
1
D0 Priority Level
1
-
0
Highest
Interrupt Type
Condition
Reset
-
Receiver Line
Status
-
Overrun Error, Parity Error,
Framing Error or Break
Interrupt
Receiver Data Available or
Trigger Level Reached
-
Reads the Line Status
Register
0
1
0
0
Second
Receiver Data
Available
Reads the Receiver Buffer
Register or the FIFO has
Dropped Below the
threshold value
Reads The Receiver Buffer
Register
1
1
0
0
Second
Character Timeout
Indication
No characters have been
read from or written to the
Rx FIFO during
programming time interval,
and the Rx FIFO is not
empty
Ready to accept new data
for transmission
0
0
1
0
Third
Transmitter
Holding Register
Empty
Reads the IIR Register or (if
source of interrupt) Writes
To The Transmitter Holding
Register
Reads the Modem Status
Register
0
0
0
0
Fourth
Modem Status
Clear to Send, Data Set
Ready, Ring Indicator or
Data Carrier Detected
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