REV. 1.0.0 EFR[6]: Auto RTS Flow Control Enable RTS# output may be u" />
參數(shù)資料
型號： XR20M1280IL40-F
廠商： Exar Corporation
文件頁數(shù)： 43/63頁
文件大?。?/td> 0K
描述： IC UART I2C/SPI 128 BYTE 40QFN
產(chǎn)品培訓(xùn)模塊： UART Product Overview
XR21V141x Full-Speed USB UART Family
標(biāo)準(zhǔn)包裝： 490
通道數(shù)： 1，UART
FIFO's： 128 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： 是
帶IrDA 編碼器/解碼器： 是
帶故障啟動位檢測功能： 是
帶調(diào)制解調(diào)器控制功能： 是
安裝類型： 表面貼裝
封裝/外殼： 40-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 40-QFN 裸露焊盤（6x6）
包裝： 托盤
其它名稱： 1016-1385
XR20M1280
48
I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
REV. 1.0.0
EFR[6]: Auto RTS Flow Control Enable
RTS# output may be used for hardware flow control by setting EFR bit-6 to logic 1. When Auto RTS is
selected, an interrupt will be generated when the receive FIFO is filled to the programmed trigger level and
RTS de-asserts HIGH at the next upper trigger level/hysteresis level. RTS# will return LOW when FIFO data
falls below the next lower trigger level/hysteresis level. The RTS# output must be asserted (LOW) before the
auto RTS can take effect. RTS# pin will function as a general purpose output when hardware flow control is
disabled.
Logic 0 = Automatic RTS flow control is disabled (default).
Logic 1 = Enable Automatic RTS flow control.
EFR[7]: Auto CTS Flow Control Enable
Automatic CTS Flow Control.
Logic 0 = Automatic CTS flow control is disabled (default).
Logic 1 = Enable Automatic CTS flow control. Data transmission stops when CTS# input de-asserts to logic
1. Data transmission resumes when CTS# returns to a logic 0.
3.20
Software Flow Control Registers (XOFF1, XOFF2, XON1, XON2) - Read/Write
These registers are used as the programmable software flow control characters xoff1, xoff2, xon1, and xon2.
For more details, see Table 8. The xoff2 is also used as auto address detect register when the auto 9-bit mode
3.21
GPIO Interrupt Enable Register (GPIOINT) - Read/Write
If a GPIO has been configured as an input, this register selects which inputs can generate a GPIO interrupt.
This register controls GPIO[7:0] when SFR[1] = 0 and GPIO[15:8] when SFR[1] = 1.
Logic 0 = GPIO interrupt for this input pin is not enabled.
Logic 1 = GPIO interrupt for this input pin is enabled.
3.22
GPIO Three-State Control Register (GPIO3T) - Read/Write
If a GPIO has been configured as an output, this register selects which outputs will be in three-state mode.
This register controls GPIO[7:0] when SFR[1] = 0 and GPIO[15:8] when SFR[1] = 1.
Logic 0 = GPIO output is in active mode and can be controlled via GPIOLVL register.
Logic 1 = GPIO output is in three-state mode.
3.23
GPIO Polarity Control Register (GPIOINV) - Read/Write
If a GPIO has been configured as an interrupt, this register selects the polarity that can generate a GPIO
interrupt. This register controls GPIO[7:0] when SFR[1] = 0 and GPIO[15:8] when SFR[1] = 1.
Logic 0 = GPIO interrupt is generated when this input pin transitions from low to high. RD GPIO LVL returns
GPIO pin state.
Logic 1 = GPIO interrupt is generated when this input pin transitions from high to low. RD GPIO LVL returns
inverted GPIO pin state.
3.24
GPIO Select Register (GPIOSEL) - Read/Write
This register selects where a GPIO is an input or an output.
Logic 0 = GPIO is an output.
Logic 1 = GPIO is an input (default).
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參數(shù)描述
XR20M1280IL40TR-F 功能描述:UART 接口集成電路 1Ch 12C/SPI UART w/ Lvl Shftrs & 16GPIOs 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
XR20M1280L24-0A-EB 功能描述:UART 接口集成電路 EVAL F/M1280 QFN24 I2C 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
XR20M1280L24-0B-EB 功能描述:UART 接口集成電路 EVAL F/ M1280 QFN24 SPI 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
XR20M1280L32-0A-EB 功能描述:UART 接口集成電路 EVAL F/M1280 QFN32 I2C 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
XR20M1280L32-0B-EB 功能描述:UART 接口集成電路 EVAL F/M1280 QFN32 SPI 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
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