REV. 1.0.2 1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO FC[7:0]: RX/TX FIFO Level Count Receive/Transmit FIFO Level Count" />
參數(shù)資料
型號(hào): XR16M770IL24-0B-EB
廠(chǎng)商: Exar Corporation
文件頁(yè)數(shù): 33/52頁(yè)
文件大小: 0K
描述: EVAL BOARD FOR XR16M770-B 24QFN
標(biāo)準(zhǔn)包裝: 1
系列: *
XR16M770
39
REV. 1.0.2
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
FC[7:0]: RX/TX FIFO Level Count
Receive/Transmit FIFO Level Count. Number of characters in Receiver FIFO (FCTR[7] = 0) or Transmitter
FIFO (FCTR[7] = 1) can be read via this register. Reading this register is not recommended when transmitting
or receiving data.
4.16
Feature Control Register (FCTR) - Read/Write
FCTR[1:0]: RTS Hysteresis
User selectable RTS# hysteresis levels for hardware flow control application. After reset, these bits are set to
“0” to select the next trigger level for hardware flow control. See Table 13 for more details.
FCTR[2]: IrDa RX Inversion
Logic 0 = Select RX input as encoded IrDa data (Idle state will be LOW).
Logic 1 = Select RX input as inverted encoded IrDa data (Idle state will be HIGH).
FCTR[3]: Auto RS-485 Direction Control
Logic 0 = Standard ST16C550 mode. Transmitter generates an interrupt when transmit holding register
becomes empty and transmit shift register is shifting data out.
Logic 1 = Enable Auto RS485 Direction Control function. The direction control signal, RTS# pin, changes its
output logic state from LOW to HIGH one bit time after the last stop bit of the last character is shifted out.
Also, the Transmit interrupt generation is delayed until the transmitter shift register becomes empty. The
RTS# output pin will automatically return to a LOW when a data byte is loaded into the TX FIFO. However,
RTS# behavior can be inverted by setting EMSR[3] = 1.
FCTR[5:4]: Transmit/Receive Trigger Table Select
See
TABLE 16: TRIGGER TABLE SELECT
BIT-5
BIT-4
TABLE
0
Table-A (TX/RX)
0
1
Table-B (TX/RX)
1
0
Table-C (TX/RX)
1
Table-D (TX/RX)
Table 16 for more details.
FCTR[6]: Scratchpad Swap
Logic 0 = Scratch Pad register is selected as general read and write register. ST16C550 compatible mode.
Logic 1 = FIFO Count register (Read-Only), Enhanced Mode Select Register (Write-Only). Number of
characters in transmit or receive FIFO can be read via scratch pad register when this bit is set. Enhanced
Mode Select Register is selected when it is written into.
FCTR[7]: Programmable Trigger Register Select
Logic 0 = Registers TRG and FC selected for RX.
Logic 1 = Registers TRG and FC selected for TX.
4.17
Enhanced Feature Register (EFR) - Read/Write
Enhanced features are enabled or disabled using this register. Bit 0-3 provide single or dual consecutive
character software flow control selection (see Table 17). When the Xon1 and Xon2 and Xoff1 and Xoff2 modes
are selected, the double 8-bit words are concatenated into two sequential characters. Caution: note that
whenever changing the TX or RX flow control bits, always reset all bits back to logic 0 (disable) before
programming a new setting.
FCTR
相關(guān)PDF資料
PDF描述
EEM44DRXN CONN EDGECARD 88POS DIP .156 SLD
GBM10DRSD-S273 CONN EDGECARD 20POS DIP .156 SLD
VI-J4R-EX CONVERTER MOD DC/DC 7.5V 75W
A3938SEQTR IC CTRLR MOSFET 3PH 32-PLCC
XR16M680IL32-0B-EB EVAL BOARD FOR XR16M680-B 32QFN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16M770IL24-0C-EB 功能描述:界面開(kāi)發(fā)工具 Eval Board for XR16M770IL24 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類(lèi)型:RS-485 工具用于評(píng)估:ADM3485E 接口類(lèi)型:RS-485 工作電源電壓:3.3 V
XR16M770IL24-F 功能描述:UART 接口集成電路 1.8 HIGH PERFORMANCE UART W/64 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
XR16M770IL32 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
XR16M770IL32-0A-EB 功能描述:界面開(kāi)發(fā)工具 Eval Board for XR16M770IL32 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類(lèi)型:RS-485 工具用于評(píng)估:ADM3485E 接口類(lèi)型:RS-485 工作電源電壓:3.3 V
XR16M770IL32-0B-EB 功能描述:界面開(kāi)發(fā)工具 Eval Board for XR16M770IL32 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類(lèi)型:RS-485 工具用于評(píng)估:ADM3485E 接口類(lèi)型:RS-485 工作電源電壓:3.3 V