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参数资料
| 型号： | MAX14830ETM+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 36/68页 |
| 文件大小： | 0K |
| 描述： | IC UART |
| 产品培训模块： | Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | * |
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41
Maxim Integrated
Quad Serial UART with 128-Word FIFOs
MAX14830
Bit 0: RST
Set the RST bit high to reset the selected UART in the MAX14830. The SPI/I2C bus stays active during this reset and
communication with the MAX14830 is possible. All register bits in the selected UART are reset to their reset state and
the FIFOs are cleared during a reset.
The global registers are not reset when the RST bit for a given UART is set. Once set high, the RST bit must be cleared
by writing a 0 to RST.
LCR—Line Control Register
Bit 7: RTSbit
The RTSbit provides direct control of the RTS_ output logic. If RTSbit is set to 1, then RTS_ is set to logic-high. The
RTSbit only works when CLKSource[7]: CLKtoRTS is set to 0.
Bit 6: TxBreak
Set TxBreak to 1 to generate a line break whereby the TX_ output is held low. TX_ output remains low until TxBreak is
set to 0.
Bit 5: ForceParity
The ForceParity bit enables forced parity, as used in 9-bit multidrop communication. Set both LCR[3]: ParityEn and
ForceParity to 1 to use forced parity. The parity bit is forced high by the transmitter if LCR[4]: EvenParity is low. The
parity bit is forced low if the EvenParity bit is high.
Bit 4: EvenParity
Set the EvenParity bit to 1 to generate even parity by the transmitter and parity is checked by the receiver. Odd parity
generation and checking are used if EvenParity is set low.
Bit 3: ParityEn
The ParityEn bit enables the use of a parity bit on the TX_ and RX_ interfaces. Set the ParityEn bit to 0 to disable parity usage.
When the ParityEn bit is 1, the transmitter generates the parity bit as defined in LCR[4], and the receiver checks the parity bit.
Bit 2: StopBits
This defines the number of STOP bits and depends on the length of the word programmed in LCR[1:0] (Table 2). When
LCR[2] is high and the word length is 5, the transmitter generates a word with a STOP bit length equal to 1.5. Under
these conditions, the receiver recognizes a STOP bit length greater than a 1-bit duration.
Bits 1, 0: Length[n]
The Length[n] bits configure the length of the words that the transmitter generates and the receiver checks for at the
asynchronous TX_ and RX_ interfaces (Table 3).
Table 2. StopBits Truth Table
Table 3. Length_ Truth Table
ADDRESS:
0x0B
MODE:
R/W
BIT
7
6
5
4
3
2
1
0
NAME
RTSbit
TxBreak
ForceParity
EvenParity
ParityEn
StopBits
Length1
Length0
RESET
0
1
0
1
StopBits
BIT
WORD LENGTH
STOP BIT LENGTH
0
5, 6, 7, 8
1
5
1–1.5
1
6, 7, 8
2
Length1
Length0
WORD LENGTH
0
5
0
1
6
1
0
7
1
8
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相关代理商/技术参数 |
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|---|---|
| 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 |
| MAX1483CPA | 功能描述:RS-485接口IC 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 |
| MAX1483CPA+ | 功能描述:RS-422/RS-485 接口 IC Slew-Rate-Limited RS-485 Transceivers RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
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