- 您现在的位置：买卖IC网 > PDF目录98009 > MAX14830ETM+ (MAXIM INTEGRATED PRODUCTS INC) SERIAL COMM CONTROLLER, QCC48 PDF资料下载
参数资料
| 型号： | MAX14830ETM+ |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | SERIAL COMM CONTROLLER, QCC48 |
| 封装： | 7 X 7 MM, ROHS COMPLIANT, TQFN-48 |
| 文件页数： | 51/68页 |
| 文件大小： | 2356K |
| 代理商： | MAX14830ETM+ |
第1页第2页第3页第4页第5页第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页当前第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页
MAX14830
Quad Serial UART with 128-Word FIFOs
and Internal Oscillator
55
TxSynch—Transmitter Synchronization Register
The TxSynch register is used to configure transmitter synchronization with a global SPI or I2C command. One of 16
trigger commands (Table 5) can be selected to be the synchronization trigger source for every UART. This allows
simultaneous start of transmission of multiple UARTs that are associated with the same global trigger command. The
synchronized UARTs can be on a single MAX14830 or on multiple devices if they are controlled by a common SPI
interface.
UARTs start transmission when a global trigger command is received. Start of transmission is considered to be the
falling edge of the START bit at the TX_ output. A delay can optionally be programmed through the SynchDelay1 and
SynchDelay2 registers.
Tx synchronization is managed through software by transmitting the broadcast trigger Tx command (Table 5) to the
MAX14830 through the SPI or I2C interface. To selectively synchronize ports that are on the same MAX14830 (Intrachip
Synchronization) or on different MAX14830 (Interchip Synchronization) devices, up to 16 trigger Tx commands have
been defined (see the GloblComnd section for more information).
Bit 7: CLKtoGPIO
The CLKtoGPIO bit is used to provide a buffered replica of the UARTs system clock (i.e. the fractional divider input) to
a GPIO. The assignment is as follows: UART0’s clock is routed to GPIO0, UART1’s clock is routed to GPIO4, UART2’s
clock is routed to GPIO8, and UART3’s clock is routed to GPIO12.
Bit 6: TxAutoDis
Set the TxAutoDis bit to 1 to enable automatic transmitter disabling. When TxAutoDis is 1, the transmitter is automati-
cally disabled when all data in the TxFIFO has been transmitted. After the transmitter is disabled, the TxFIFO can then
be filled with data that is transmitted when its assigned trigger command, defined by the TrigSelx bits, is received.
Bit 5: TrigDelay
Set TrigDelay to 1 to enable delayed start of transmission. The UART starts transmitting data following a delay pro-
grammed in SynchDelay1 and SynchDelay2 after receiving the assigned trigger command.
Bit 4: SynchEn
Set SynchEn to 1 to enable the software Tx synchronization. When SynchEn is high, the UART starts transmitting data
after receiving the expected trigger command, if the TxFIFO contains data. Setting SynchEn high forces the TxDisabl
bit (MODE1[1]) high and thereby disables the UART’s transmitter. This prevents the transmitter from sending data as
soon as the TxFIFO contains some. Once the TxFIFO has been loaded, the UART starts transmitting data only upon
receiving the assigned trigger command.
Set SynchEn to 0 to disable transmitter synchronization for that UART. When SynchEn is 0, that UART’s transmitter does
not start transmission through any trigger command.
Bits 3–0: TrigSel[n]
The TrigSel[n] bits select the trigger command for that UART’s transmitter synchronization when SynchEn is 1. For
example, set TxSynch[3:0] to 0x08 for the UART to be triggered by TX command 8 (0xE8, Table 5).
ADDRESS:
0x20
MODE:
R/W
BIT
7
6
5
4
3
2
1
0
NAME
CLKtoGPIO
TxAutoDis
TrigDelay
SynchEn
TrigSel3
TrigSel2
TrigSel1
TrigSel0
RESET
0
相关PDF资料 |
PDF描述 |
|---|---|
| MAX3624AETJ+ | 312.5 MHz, OTHER CLOCK GENERATOR, QCC32 |
| MAX3638ETM+ | 800 MHz, OTHER CLOCK GENERATOR, QCC48 |
| MAX3679CTJ+ | 625 MHz, OTHER CLOCK GENERATOR, QCC32 |
| MAX7329AUP+ | 8 I/O, PIA-GENERAL PURPOSE, PDSO20 |
| MAX7329AAP+ | 8 I/O, PIA-GENERAL PURPOSE, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX14830ETM+ | 功能描述:UART 接口集成电路 Quad Serial UART w/128-Word FIFOs 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 |
| MAX14830ETM+T | 功能描述:UART 接口集成电路 Quad Serial UART w/128-Word FIFOs 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 |
| MAX14830EVKIT# | 功能描述:界面开发工具 MAX14830 Eval Kit 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 |
| MAX14830EVKIT+ | 制造商:Maxim Integrated Products 功能描述:QUAD UART EV-KIT WITH IO-LINK AND MULTIPROTOCOL - Boxed Product (Development Kits) |
| MAX1483C/D+ | 功能描述:RS-485接口IC low-power transceivers for RS-485 and RS-422 communication RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。