參數(shù)資料
型號(hào)： XR16M654IV80-0A-EB
廠商： Exar Corporation
文件頁(yè)數(shù)： 10/58頁(yè)
文件大?。?/td> 0K
描述： EVAL BOARD FOR XR16M654-A 80LQFP
標(biāo)準(zhǔn)包裝： 1
系列： *
XR16M654/654D
18
1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO
REV. 1.0.0
2.9.2
Transmitter Operation in non-FIFO Mode
The host loads transmit data to THR one character at a time. The THR empty flag (LSR bit-5) is set when the
data byte is transferred to TSR. THR flag can generate a transmit empty interrupt (ISR bit-1) when it is enabled
by IER bit-1. The TSR flag (LSR bit-6) is set when TSR becomes completely empty.
2.9.3
Transmitter Operation in FIFO Mode
The host may fill the transmit FIFO with up to 64 bytes of transmit data. The THR empty flag (LSR bit-5) is set
whenever the FIFO is empty. The THR empty flag can generate a transmit empty interrupt (ISR bit-1) when the
FIFO becomes empty. The transmit empty interrupt is enabled by IER bit-1. The TSR flag (LSR bit-6) is set
when TSR/FIFO becomes empty.
FIGURE 8. TRANSMITTER OPERATION IN NON-FIFO MODE
FIGURE 9. TRANSMITTER OPERATION IN FIFO AND FLOW CONTROL MODE
Transmit
Holding
Register
(THR)
Transmit Shift Register (TSR)
Data
Byte
L
S
B
M
S
B
THR Interrupt (ISR bit-1)
Enabled by IER bit-1
TXNOFIFO1
16X or 8X or 4X
Clock
( DLD[5:4] )
Transmit Data Shift Register
(TSR)
Transmit
Data Byte
THR Interrupt (ISR bit-1) falls
below the programmed Trigger
Level and then when becomes
empty. FIFO is Enabled by FCR
bit-0=1
Transmit
FIFO
16X or 8X or 4X Clock
(DLD[5:4])
Auto CTS Flow Control (CTS# pin)
Auto Software Flow Control
Flow Control Characters
(Xoff1/2 and Xon1/2 Reg.)
TXFIFO1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR16M654IV80-0B-EB 功能描述:界面開發(fā)工具 Eval Board for XR16M654IV80-0B RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
XR16M654IV80-F 功能描述:UART 接口集成電路 UART 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
XR16M654IV80TR-F 制造商:Exar Corporation 功能描述:UART 4-CH 64Byte FIFO 1.8V/2.5V/3.3V 80-Pin LQFP T/R
XR16M670 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
XR16M670IB25 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
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