參數(shù)資料
型號: XR16M554IV80-F
廠商: Exar Corporation
文件頁數(shù): 21/46頁
文件大小: 0K
描述: IC UART FIFO 16B QUAD 80LQFP
標準包裝: 119
特點: *
通道數(shù): 4,QUART
FIFO's: 16 字節(jié)
規(guī)程: RS232
電源電壓: 1.62 V ~ 3.63 V
帶自動流量控制功能:
帶故障啟動位檢測功能:
帶調(diào)制解調(diào)器控制功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 80-LQFP
供應商設備封裝: 80-LQFP(12x12)
包裝: 托盤
XR16M554/554D
28
1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
REV. 1.0.0
MSR[4]: CTS Input Status
A HIGH on the CTS# pin will stop UART transmitter as soon as the current character has finished
transmission, and a LOW will resume data transmission. Normally MSR bit-4 bit is the compliment of the CTS#
input. However in the loopback mode, this bit is equivalent to the RTS# bit in the MCR register. The CTS# input
may be used as a general purpose input when the modem interface is not used.
MSR[5]: DSR Input Status
Normally this bit is the complement of the DSR# input. In the loopback mode, this bit is equivalent to the DTR#
bit in the MCR register. The DSR# input may be used as a general purpose input when the modem interface is
not used.
MSR[6]: RI Input Status
Normally this bit is the complement of the RI# input. In the loopback mode this bit is equivalent to bit-2 in the
MCR register. The RI# input may be used as a general purpose input when the modem interface is not used.
MSR[7]: CD Input Status
Normally this bit is the complement 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.
4.11
Baud Rate Generator Registers (DLL and DLM) - Read/Write
These registers make-up the value of the baud rate divisor. The concatenation of the contents of DLM and DLL
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