TABLE 9: TRANSMIT AND R
參數(shù)資料
型號(hào): XR16M681IL24-F
廠商: Exar Corporation
文件頁(yè)數(shù): 24/51頁(yè)
文件大小: 0K
描述: IC UART FIFO 64B 24QFN
標(biāo)準(zhǔn)包裝: 490
特點(diǎn): *
通道數(shù): 1,UART
FIFO's: 64 字節(jié)
規(guī)程: RS232,RS422,RS485
電源電壓: 1.62 V ~ 3.63 V
帶自動(dòng)流量控制功能:
帶IrDA 編碼器/解碼器:
帶故障啟動(dòng)位檢測(cè)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: 24-VFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝: 24-QFN 裸露焊盤(pán)(4x4)
包裝: 托盤(pán)
其它名稱: 1016-1459
XR16M681IL24-F-ND
TABLE 9: TRANSMIT AND RECEIVE FIFO TRIGGER TABLE AND LEVEL SELECTION
FCR BIT-7
FCR BIT-6
FCR BIT-5
FCR BIT-4
RECEIVE TRIGGER
LEVEL
TRANSMIT
TRIGGER LEVEL
COMPATIBILITY
0
1
0
1
0
1
0
1
0
1
0
1
8
16
24
28
16
8
24
30
16C650A, 16V2650,
16M2650
XR16M681
30
1.62V TO 3.63V UART WITH 32-BYTE FIFO AND VLIO INTERFACE
REV. 1.0.1
4.6
Line Control Register (LCR) - Read/Write
The Line Control Register is used to specify the asynchronous data communication format. The word or
character length, the number of stop bits, and the parity are selected by writing the appropriate bits in this
register.
LCR[1:0]: TX and RX Word Length Select
These two bits specify the word length to be transmitted or received.
WORD LENGTH
0
5 (default)
0
1
6
1
0
7
1
8
LCR[2]: TX and RX Stop-bit Length Select
The length of stop bit is specified by this bit in conjunction with the programmed word length.
WORD
LENGTH
STOP BIT LENGTH
(BIT TIME(S))
0
5,6,7,8
1 (default)
1
5
1-1/2
1
6,7,8
2
LCR[3]: TX and RX Parity Select
Parity or no parity can be selected via this bit. The parity bit is a simple way used in communications for data
integrity check. See Table 10 for parity selection summary below.
Logic 0 = No parity.
Logic 1 = A parity bit is generated during the transmission while the receiver checks for parity error of the
data character received.
BIT-1
BIT-0
BIT-2
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