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參數(shù)資料
| 型號： | ST16C2550 |
| 廠商： | Exar Corporation |
| 英文描述： | Dual UART with 16-Byte of Transmit and Receive FIFO(雙通用異步接收器/發(fā)送器（帶16字節(jié)接收和發(fā)送先進(jìn)先出）) |
| 中文描述： | 雙UART具有16的發(fā)送和接收FIFO（雙通用異步接收器/發(fā)送器（帶16字節(jié)接收和發(fā)送先進(jìn)先出字節(jié)）） |
| 文件頁數(shù)： | 21/34頁 |
| 文件大?。?/td> | 314K |
| 代理商： | ST16C2550 |
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ST16C2550
21
Rev. 3.40
Logic 1 = The -RI input to the 2550 has changed from a
logic 0 to a logic 1. A modem Status Interrupt will be
generated.
MSR BIT-3:
Logic 0 = No -CD Change. (normal default condition)
Logic 1 = Indicates that the -CD input to the has changed
state since the last time it was read. A modem Status
Interrupt will be generated.
MSR BIT-4:
During normal operation, this bit is the compliment of
the -CTS input. During the loop-back mode this bit is
equivalent to MCR bit-1 (-RTS).
MSR BIT-5:
During normal operation, this bit is the compliment of
the -DSR input. During the loop-back mode, this bit is
equivalent to MCR bit-0 (-DTR).
MSR BIT-6:
During normal operation, this bit is the compliment of
the -RI input. Reading this bit in the loop-back mode
produces the state of MCR bit-2 (-OP1)
MSR BIT-7:
During normal operation, this bit is the compliment of
the -CD input. Reading this bit in the loop-back mode
produces the state of MCR bit-3 (-OP2).
Note: Whenever any MSR bit 0-3: is set to logic “1”, a
MODEM Status Interrupt will be generated.
Scratchpad Register (SPR)
The ST16C2550 provides a temporary data register to
store 8 bits of user information.
ST16C2550 EXTERNAL RESET CONDITION
REGISTERS
RESET STATE
IER
FCR
ISR
LCR
MCR
LSR
IER BITS 0-7=0
FCR BITS 0-7=0
ISR BIT-0=1, ISR BITS 1-7=0
LCR BITS 0-7=0
MCR BITS 0-7=0
LSR BITS 0-4=0,
LSR BITS 5-6=1 LSR, BIT 7=0
MSR BITS 0-3=0,
MSR BITS 4-7=input signals
SFR BITS 0-7=1
DLL BITS 0-7=X
DLM BITS 0-7=X
MSR
SPR
DLL
DLM
OUTPUTS
RESET STATE
TX A/B
-OP2 A/B
-RTS A/B
-DTR A/B
INT A/B
Logic 1
Logic 1
Logic 1
Logic 1
Three-state condition
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PDF描述 |
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| ST16C2552 | Dual UART with 16-Byte Transmit and Receive FIFO(雙通用異步接收器/發(fā)送器（帶16字節(jié)接收和發(fā)送先進(jìn)先出）) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST16C2550_04 | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V DUART WITH 16-BYTE FIFO |
| ST16C2550CJ-0A-EB | 功能描述:界面開發(fā)工具 Supports C2550 44 ld PLCC, ISA Interface RoHS:否 制造商:Bourns 產(chǎn)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 |
| ST16C2550CJ44 | 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V DUART WITH 16-BYTE FIFO |
| ST16C2550CJ44-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(shù)量:2 數(shù)據(jù)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 |
| ST16C2550CJ44TR-F | 功能描述:UART 接口集成電路 DUAL UART W/16BYTE FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)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 |
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