CP2105EK Silicon Laboratories Inc, CP2105EK Datasheet - Page 15

• Manufacturer Part Number: CP2105EK
• Description: KIT EVAL FOR CP2105
• Manufacturer: Silicon Laboratories Inc

Specifications of CP2105EK

• Main Purpose: Interface, Dual USB 2.0 to UART (RS485) Bridge
• Embedded: No
• Utilized Ic / Part: CP2105
• Primary Attributes: Full Speed (12Mbps)
• Secondary Attributes: LED Status Indicators
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3.3 V
• Product: Interface Development Tools
• For Use With/related Products: CP2105
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 336-2005

8.2. GPIO.1_ECI—RS-485 Transceiver Bus Control
GPIO.1_ECI is configurable as an RS-485 bus transceiver control pin or the Enhanced Communication Interface
which is connected to the DE and RE inputs of the transceiver. When configured for RS-485 mode, the pin is
asserted during UART data transmission as well as line break transmission and the RX Toggle mode is not
available. The RS-485 mode of GPIO.1_ECI is active-high by default, and is also configurable for active-low mode.
GPIO.1_ECI – RS485
CP2105
Figure 6. RS-485 Transceiver Typical Connection Diagram
RX
TX
Rev. 1.0
R
D
RE
DE
Transceiver
RS-485
CP2105
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