- 您現在的位置：買賣IC網 > PDF目錄384931 > ST16C550CP40 (STARTECH SEMICONDUCTOR INC) Voltage Regulator IC; Output Current:350mA; Output Voltage:1.8V; Package/Case:8-TSSOP; Supply Voltage Max:6V; Current Rating:350mA; Leaded Process Compatible:No; Output Current Max:350mA; Output Voltage Max:1.8V PDF資料下載
參數資料
| 型號： | ST16C550CP40 |
| 廠商： | STARTECH SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Voltage Regulator IC; Output Current:350mA; Output Voltage:1.8V; Package/Case:8-TSSOP; Supply Voltage Max:6V; Current Rating:350mA; Leaded Process Compatible:No; Output Current Max:350mA; Output Voltage Max:1.8V |
| 中文描述： | 1 CHANNEL(S), 448K bps, SERIAL COMM CONTROLLER, PDIP40 |
| 文件頁數： | 16/35頁 |
| 文件大?。?/td> | 227K |
| 代理商： | ST16C550CP40 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁當前第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁
ST16C550
16
Rev. 4.30
Interrupt Status Register (ISR)
The ST16C550 provides four levels of prioritized inter-
rupts to minimize external software interaction. The
Interrupt Status Register (ISR) provides the user with six
interrupt status bits. Performing a read cycle on the ISR
will provide the user with the highest pending interrupt
level to be serviced. No other interrupts are acknowl-
edged until the pending interrupt is serviced. Whenever
the interrupt status register is read, the interrupt status
is cleared. However it should be noted that only the
current pending interrupt is cleared by the read. A lower
level interrupt may be seen after rereading the interrupt
status bits. The Interrupt Source Table 5 (below) shows
the data values (bit 0-3) for the four prioritized interrupt
levels and the interrupt sources associated with each of
these interrupt levels:
Table 5, INTERRUPT SOURCE TABLE
Priority
Level
[ISR]
Bit-3 Bit-2 Bit-1 Bit-0
Source of the interrupt
X
1
2
2
3
4
0
0
0
1
0
0
0
1
1
1
0
0
0
1
0
0
1
0
1
0
0
0
0
0
No interrupt pending
LSR (Receiver Line Status Register)
RXRDY (Received Data Ready)
RXRDY (Receive Data time out)
TXRDY ( Transmitter Holding Register Empty)
MSR (Modem Status Register)
相關PDF資料 |
PDF描述 |
|---|---|
| ST16C550IP40 | UART WITH 16-BYTE FIFO’s |
| ST16C552AIJ68 | DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT |
| ST16C552IJ68 | DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT |
| ST16C552CJ68 | Voltage Regulator IC; Package/Case:8-TSSOP; Output Current:350mA; Output Voltage:2.5V; Supply Voltage Max:6V; Current Rating:350mA; Leaded Process Compatible:No; Output Current Max:350mA; Output Voltage Max:2.5V RoHS Compliant: No |
| ST16C552ACJ68 | DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ST16C550CP40-F | 功能描述:UART 接口集成電路 SINGLE UART W/16 BYTE FIFO RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| ST16C550CP40-F | 制造商:Exar Corporation 功能描述:IC UART INTERFACE 1.5Mbps 5.5V DIP-40 |
| ST16C550CQ-0A-EVB | 功能描述:界面開發(fā)工具 Supports C550 48 ld TQFP, ISA Interface RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| ST16C550CQ48 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| ST16C550CQ48-F | 功能描述:UART 接口集成電路 2.97V-5.5V 16B FIFO temp 0C to 70C; UART RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復。