參數(shù)資料
型號(hào)： XR16C850CJ
廠商： EXAR CORP
元件分類： 微控制器/微處理器
英文描述： UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control
中文描述： 1 CHANNEL(S), 2.25M bps, SERIAL COMM CONTROLLER, PQCC44
封裝： PLASTIC, LCC-44
文件頁(yè)數(shù)： 35/55頁(yè)
文件大?。?/td> 331K
代理商： XR16C850CJ
XR16C850
35
Rev. 1.20
EFR bit-7:
Automatic CTS Flow Control.
Logic 0 = Automatic CTS flow control is disabled.
(normal default condition)
Logic 1 = Enable Automatic CTS flow control. Transmis-
sion will stop when -CTS goes to a logical 1. Transmis-
sion will resume when the -CTS pin returns to a logical
0.
FEATURE CONTROL REGISTER (FCTR)
This register controls the XR16C850 new functions that
are not available on ST16C550 or ST16C650A.
FCTR BIT 0-1:
User selectable -RTS delay timer for hardware flow
control application. After reset, these bits are set to “0”
to select the next trigger level for hardware flow control.
FCTR
Bit-1
FCTR
Bit-0
Trigger
level
0
0
1
1
0
1
0
1
Next trigger level
4 char+trigger level
6 char+trigger level
8 char+trigger level
FCTR BIT-2:
0 = Select RX input as encoded IrDa data.
1 = Select RX input as active high encoded IrDa data.
FCTR BIT-3:
Auto RS-485 Direction control.
0 = Standard ST16C550 mode. Transmitter generates
an interrupt when transmit holding register becomes
empty and transmit shift register is shifting data out.
1 = Enable Auto RS485 Direction Control function. The
direction control signal, -OP1 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 -OP1 output pin will
automatically return to logic high state when a data byte
is loaded into the TX FIFO.
FCTR BIT 4-5:
Transmit / receive trigger table select.
FCTR
Bit-5
FCTR
Bit-4
Table
0
0
1
1
0
1
0
1
Table-A (TX/RX)
Table-B (TX/RX)
Table-C (TX/RX)
Table-D (TX/RX)
FCTR BIT-6:
Register mode select.
0 = Scratch Pad register is selected as general read and
write register. ST16C550 compatible mode.
1 = FIFO count register, Enhanced Mode Select Reg-
ister. Number of characters in transmit or receive
holding register can be read via scratch pad register
when this bit is set. Enhanced Mode is selected when
it is written into it.
FCTR BIT-7:
Programmable trigger register select.
0 = Receiver programmable trigger level register is
selected.
1 = Transmitter programmable trigger level register is
selected.
TRIGGER LEVEL / FIFO DATA COUNT REGISTER
(TRG)
User programmable transmit / receive trigger level
register.
TRG BIT 0-7: Write only.
these bits are used to program desired trigger levels that
are not available in standard tables.
TRG BIT 0-7: Read only.
Transmit / receive FIFO count. Number of characters in
transmit or receive FIFO can be read via this register.
相關(guān)PDF資料
PDF描述
XR16C850CM UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control
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XR16C850 UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16C850CJ-F 功能描述:UART 接口集成電路 UARTW/128BYTE 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
XR16C850CJTR-F 制造商:Exar Corporation 功能描述:UART 1-CH 128Byte FIFO 3.3V/5V 44-Pin PLCC T/R 制造商:Exar Corporation 功能描述:XR16C850CJTR-F
XR16C850CM 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
XR16C850CM-0A-EVB 功能描述:UART 接口集成電路 Supports C850 48 ld TQFP, ISA Interface 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
XR16C850CM-F 功能描述:UART 接口集成電路 UARTW/128BYTE 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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