REV. 5.0.2 14 2.9.2 Transmitter Operation in non-FIFO Mode The host loads transmit d" />
參數(shù)資料
型號: ST16C654CQ64TR-F
廠商: Exar Corporation
文件頁數(shù): 6/51頁
文件大小: 0K
描述: IC UART FIFO 64B QUAD 64LQFP
標準包裝: 1,000
特點: *
通道數(shù): 4,QUART
FIFO's: 64 字節(jié)
規(guī)程: RS232
電源電壓: 2.97 V ~ 5.5 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:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應商設(shè)備封裝: 64-LQFP(10x10)
包裝: 帶卷 (TR)
ST16C654/654D
xr
2.97V TO 5.5V QUAD UART WITH 64-BYTE FIFO
REV. 5.0.2
14
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 7. TRANSMITTER OPERATION IN NON-FIFO MODE
FIGURE 8. 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
Clock
Transmit Data Shift Register
(TSR)
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
RX FIFO
16X Clock
Auto CTS Flow Control (CTS# pin)
Auto Software Flow Control
Flow Control Characters
(Xoff1/2 and Xon1/2 Reg.
TXFIFO 1
THR
相關(guān)PDF資料
PDF描述
XR16V564IV80-F IC UART FIFO 32B QUAD 80LQFP
VE-25B-IY CONVERTER MOD DC/DC 95V 50W
XR16M564IV80-F IC UART FIFO 32B QUAD 80LQFP
VE-B5K-IX-F4 CONVERTER MOD DC/DC 40V 75W
VE-B5K-IX-F3 CONVERTER MOD DC/DC 40V 75W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST16C654D 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V QUAD UART WITH 64-BYTE FIFO
ST16C654DCQ64 制造商:Exar Corporation 功能描述:
ST16C654DCQ64-0A-EB 功能描述:界面開發(fā)工具 Supports C654D 64 ld TQFP, ISA Interface 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
ST16C654DCQ64-F 功能描述:UART 接口集成電路 QUAD UARTW/64BYTE 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
ST16C654DCQ64-F 制造商:Exar Corporation 功能描述:IC QUAD UART 1.5MBPS 5.5V 64-LQFP