参数资料
| 型号： | XR16C2550IMTR-F |
| 厂商： | Exar Corporation |
| 文件页数： | 17/37页 |
| 文件大小： | 0K |
| 描述： | IC UART FIFO 16B DUAL 48TQFP |
| 标准包装： | 1,500 |
| 特点： | * |
| 通道数： | 2，DUART |
| FIFO's： | 16 字节 |
| 规程： | RS232，RS485 |
| 电源电压： | 2.97 V ~ 5.5 V |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 带CMOS： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-TQFP |
| 供应商设备封装： | 48-TQFP（7x7） |
| 包装： | 带卷 (TR) |
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XR16C2550
24
2.97V TO 5.5V DUART WITH 16-BYTE FIFO
REV. 1.0.2
MSR[7]: CD Input Status
Normally this bit is the compliment of the CD# input. In the loopback mode this bit is equivalent to bit-3 in the
MCR register. The CD# input may be used as a general purpose input when the modem interface is not used.
4.10
Scratch Pad Register (SPR) - Read/Write
This is a 8-bit general purpose register for the user to store temporary data. The content of this register is
preserved during sleep mode but becomes 0xFF (default) after a reset or a power off-on cycle.
4.11
Baud Rate Generator Registers (DLL and DLM) - Read/Write
The Baud Rate Generator (BRG) is a 16-bit counter that generates the data rate for the transmitter. The rate is
programmed through registers DLL and DLM which are only accessible when LCR bit-7 is set to ‘1’.
TABLE 11: UART RESET CONDITIONS FOR CHANNEL A AND B
REGISTERS
RESET STATE
DLM
Bits 7-0 = 0xXX
DLL
Bits 7-0 = 0xXX
RHR
Bits 7-0 = 0xXX
THR
Bits 7-0 = 0xXX
IER
Bits 7-0 = 0x00
FCR
Bits 7-0 = 0x00
ISR
Bits 7-0 = 0x01
LCR
Bits 7-0 = 0x00
MCR
Bits 7-0 = 0x00
LSR
Bits 7-0 = 0x60
MSR
Bits 3-0 = Logic 0
Bits 7-4 = Logic levels of the inputs inverted
SPR
Bits 7-0 = 0xFF
I/O SIGNALS
RESET STATE
TX
Logic 1
OP2#
Logic 1
RTS#
Logic 1
DTR#
Logic 1
RXRDY#
Logic 1
TXRDY#
Logic 0
INT
Three-State Condition
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XR16C2550IP | 制造商:EXAR 制造商全称:EXAR 功能描述:2.97V TO 5.5V DUART WITH 16-BYTE FIFO |
| XR16C2552 | 制造商:EXAR 制造商全称:EXAR 功能描述:2.97V TO 5.5V DUAL UART WITH 16-BYTE FIFO |
| XR16C2552IJ | 制造商:EXAR 制造商全称:EXAR 功能描述:2.97V TO 5.5V DUAL UART WITH 16-BYTE FIFO |
| XR16C2850 | 制造商:EXAR 制造商全称:EXAR 功能描述:2.97V TO 5.5V DUAL UART WITH 128-BYTE FIFOS |
| XR16C2850_05 | 制造商:EXAR 制造商全称:EXAR 功能描述:2.97V TO 5.5V DUAL UART WITH 128-BYTE FIFOS |
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