REV. 1.0.0 2.7.1 Transmit Holding Register (THR) - Write Only The tran" />
參數(shù)資料
型號: XR16M598IQ100-F
廠商: Exar Corporation
文件頁數(shù): 4/58頁
文件大小: 0K
描述: IC UART FIFO 16B OCTAL 100QFP
標準包裝: 66
特點: *
通道數(shù): 8
FIFO's: 16 字節(jié)
規(guī)程: RS485
電源電壓: 1.62 V ~ 3.63 V
帶自動流量控制功能:
帶IrDA 編碼器/解碼器:
帶故障啟動位檢測功能:
帶調(diào)制解調(diào)器控制功能:
安裝類型: 表面貼裝
封裝/外殼: 100-BQFP
供應商設備封裝: 100-QFP(14x20)
包裝: 托盤
XR16M598
12
1.62V TO 3.63V HIGH PERFORMANCE OCTAL UART WITH 16-BYTE FIFO
REV. 1.0.0
2.7.1
Transmit Holding Register (THR) - Write Only
The transmit holding register is an 8-bit register providing a data interface to the host processor. The host
writes transmit data byte to the THR to be converted into a serial data stream including start-bit, data bits,
parity-bit and stop-bit(s). The least-significant-bit (Bit-0) becomes first data bit to go out. The THR is the input
register to the transmit FIFO of 16 bytes when FIFO operation is enabled by FCR bit-0. Every time a write
operation is made to the THR, the FIFO data pointer is automatically bumped to the next sequential data
location.
2.7.2
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.
FIGURE 5. TRANSMITTER OPERATION IN NON-FIFO 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
相關PDF資料
PDF描述
XR16M654IQ100-F IC UART FIFO 64B QUAD 100QFP
XR16M670IL32-F IC UART FIFO 32B 32QFN
XR16M680IM48-F IC UART FIFO 32B 48TQFP
XR16M681IL32-F IC UART FIFO 64B 32QFN
XR16M698IQ100-F IC UART FIFO 32B OCTAL 100QFP
相關代理商/技術參數(shù)
參數(shù)描述
XR16M654 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO
XR16M654D 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO
XR16M654DIV-0A-EVB 功能描述:界面開發(fā)工具 Eval Board for XR16M654DIV-0A RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
XR16M654DIV-0B-EVB 功能描述:界面開發(fā)工具 Eval Board for XR16M654DIV-0B RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
XR16M654DIV64 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V QUAD UART WITH 64-BYTE FIFO