- 您现在的位置：买卖IC网 > PDF目录16523 > XR68M752IL-0B-EB (Exar Corporation)EVAL BOARD FOR XR68M752 32QFN PDF资料下载
参数资料
| 型号： | XR68M752IL-0B-EB |
| 厂商： | Exar Corporation |
| 文件页数： | 6/54页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XR68M752 32QFN |
| 标准包装： | 1 |
| 系列： | * |
第1页第2页第3页第4页第5页当前第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页
XR16M752/XR68M752
14
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
REV. 1.1.1
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 M752 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 6. 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
To Other
Channel
Fractional Baud
Rate Generator
Logic
相关PDF资料 |
PDF描述 |
|---|---|
| LBR2518T101M | INDUCTOR WOUND 100UH 80MA 1007 |
| VE-JVY-EZ-S | CONVERTER MOD DC/DC 3.3V 16.5W |
| XR16V2752IL-0B-EB | EVAL BOARD FOR V2752 32QFN |
| EEU-FR1J271L | CAP ALUM 270UF 63V 20% RADIAL |
| UPA0J561MPD1TD | CAP ALUM 560UF 6.3V 20% RADIAL |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XR68M752IL32 | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE DUART WITH 64-BYTE FIFO |
| XR68M752IL32-F | 功能描述:UART 接口集成电路 UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| XR68M752IL32TR-F | 功能描述:UART 接口集成电路 W/64 BYTE FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| XR68M752IM-0B-EB | 功能描述:界面开发工具 Support XR68M752 48L TQFP, PCI Interface RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XR68M752IM48 | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE DUART WITH 64-BYTE FIFO |
发布紧急采购，3分钟左右您将得到回复。