REV. 1.1.0 odd number. When using 4X sampling mode, the bit time will have a jitter of ± 1/8 whenev" />
參數(shù)資料
型號： XR20M1170G24-0A-EB
廠商： Exar Corporation
文件頁數(shù)： 4/56頁
文件大?。?/td> 0K
描述： EVAL BOARD FOR XR20M1170 24TSSOP
標(biāo)準(zhǔn)包裝： 1
主要目的： 接口，UART
嵌入式： 否
已用 IC / 零件： XR20M1170
次要屬性： I²C & SPI 接口
已供物品： 板
其它名稱： 1016-1616
XR20M1170G24-0A-EB-ND
XR20M1170
12
I2C/SPI UART WITH 64-BYTE FIFO
REV. 1.1.0
odd number. When using 4X sampling mode, the bit time will have a jitter of ± 1/8 whenever DLD is non-zero,
odd and not a multiple of 4. When using a non-standard data rate crystal or external clock, the divisor value
can be calculated with the following equation(s):
Required Divisor (decimal)=(XTAL1 clock frequency / prescaler) /(serial data rate x 16), with 16X mode, DLD[5:4]=’00’
Required Divisor (decimal)= (XTAL1 clock frequency / prescaler / (serial data rate x 8), with 8X mode, DLD[5:4] = ’01’
Required Divisor (decimal)= (XTAL1 clock frequency / prescaler / (serial data rate x 4), with 4X mode, DLD[5:4] = ’10’
ROUND( (Required Divisor - TRUNC(Required Divisor) )*16)/16 + TRUNC(Required Divisor), where
DLM = TRUNC(Required Divisor) >> 8
DLL = TRUNC(Required Divisor) & 0xFF
DLD = ROUND( (Required Divisor-TRUNC(Required Divisor) )*16)
The closest divisor that is obtainable in the M1170 can be calculated using the following formula:
In the formulas above, please note that:
TRUNC (N) = Integer Part of N. For example, TRUNC (5.6) = 5.
ROUND (N) = N rounded towards the closest integer. For example, ROUND (7.3) = 7 and ROUND (9.9) = 10.
A >> B indicates right shifting the value ’A’ by ’B’ number of bits. For example, 0x78A3 >> 8 = 0x0078.
FIGURE 12. BAUD RATE GENERATOR
XTAL1
XTAL2
Crystal
Osc/
Buffer
MCR Bit-7=0
(default)
MCR Bit-7=1
DLL, DLM and DLD
Registers
Prescaler
Divide by 1
Prescaler
Divide by 4
16X or 8X or 4X
Sampling
Rate Clock
to Transmitter
and Receiver
Fractional Baud
Rate Generator
Logic
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XR20M1170G16-0B-EB EVAL BOARD FOR XR20M1170 16TSSOP
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR20M1170G24-0B-EB 功能描述:UART 接口集成電路 Supports M1170 24 ld TSSOP, 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
XR20M1170IG16 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
XR20M1170IG16-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
XR20M1170IG16-F 制造商:Exar Corporation 功能描述:IC SGL UART 16MBPS 3.63V 16-TSSOP 制造商:Exar Corporation 功能描述:IC, SGL UART, 16MBPS, 3.63V, 16-TSSOP
XR20M1170IG16TR-F 制造商:Exar Corporation 功能描述:UART 1-CH 64Byte FIFO 1.8V/2.5V/3.3V 16-Pin TSSOP T/R 制造商:Exar Corporation 功能描述:XR20M1170IG16TR-F 制造商:EXAR 功能描述:UART 1-CH 64Byte FIFO 1.8V/2.5V/3.3V 16-Pin TSSOP T/R
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