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MAX14830 Evaluation Kit
Evaluates: MAX14830
Detailed Description of Hardware
The MAX14830 EV kit provides a proven design to
evaluate the MAX14830 IC. The IC is an advanced quad-
channel UART with each UART containing 128 words of
receive and transmit FIFO buffer that can be controlled
through SPI or I 2 C. Each of the four UARTs is selected
through SPI or I 2 C in-band addressing.
Each of the four UARTs can interface with an IO-Link
master transceiver or an RS-485/RS-232 multiprotocol
transceiver. The EV kit contains four on-board IO-Link
master transceivers, four RS-485/RS-232 multiprotocol
transceivers, and 8-channel DPDT switches to select
between the IO link and RS-485/RS-232 transceivers.
Jumper Selection
SPI/I 2 C Operating Mode (SPI/ I2C )
Jumper JU1 selects the IC’s operating mode. The operat-
ing mode is selectable between SPI and I 2 C. See Table
2 for JU1 shunt positions.
Table 2. JU1 Jumper Selection (SPI/ I2C )
IO Link and RS-485/RS-232
Output Interface Selection (INA)
Jumper JU2 selects the IC’s output interface. The output
interface is selectable between the IO link and RS-485/
RS-232 transceivers. See Table 3 for JU2 shunt positions.
IO-Link Signal Indicators ((C/Q)/(DI))
Jumpers JU3–JU10 connect or disconnect the IO-Link
signal (C/Q)/(DI) from their respective LED indicators.
Install shunts to connect or remove shunts to disconnect
the IO-Link signal from their respective LED indicators.
Table 4 lists the correspondence between jumpers
JU3–JU10 to their respective IO-Link signal and LED
indicators.
UART and IO-Link
Chip-Select Signal (CSN)
Jumper JU11 selects the destination for the CSN (chip-
select signal on the SPI/ I2C header, pin 5). The CSN
chip-select signal can be set to serve either the UART
(MAX14830) or the four IO links (MAX14824) using JU11.
See Table 5 for JU11 shunt positions.
SHUNT
POSITION
U1-1 (SPI/ I2C )
CONNECTED TO
OPERATING
MODE
Not installed*
Installed
* Default position.
+3.3V
(through resistor R11)
GND
SPI
I 2 C
Table 4. JU3–JU10 Jumper Legend (LEDs)
JUMPER* SIGNAL/POWER LED
JU3 IOLINK0 C/Q D5
JU4
IOLINK0 DI
D6
Not installed*
IO link
Table 3. JU2 Jumper Selection (INA)
SHUNT U2-4 AND U3-4 (INA) OUTPUT
POSITION CONNECTED TO INTERFACE
GND
(through resistor R12)
Installed +3.3V RS-485/RS-232
* Default position.
Table 5. JU11 Jumper Selection (CSN)
JU5 IOLINK1 C/Q
JU6 IOLINK1 DI
JU7 IOLINK2 C/Q
JU8 IOLINK2 DI
JU9 IOLINK3 C/Q
JU10 IOLINK3 DI
*Install shunts to connect or remove (default) shunts to
disconnect from LED.
D7
D8
D9
D10
D11
D12
SHUNT
POSITION
1-2*
2-3
Not installed
U12-1 (IN) CONNECTED TO
+3.3V
GND
SPI/ I2C header, pin 11 (CSN_SEL)
SPI/ I2C HEADER, PIN 5 (CSN)
CONNECTED TO
U1, pin 5 ( CS /A0)
(through jumper JU19)
U4–U7, pin 6 ( CS )
CSN connection selected by
CSN_SEL
CSN SERVING
UART
IO links
Determined by CSN_SEL
* Default position.
4
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相关代理商/技术参数
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
MAX1483CSA
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
MAX1483CSA+
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
MAX1483CSA+T
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
MAX1483CSA-T
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