DK-GM-00-1.0 SkyeTek, DK-GM-00-1.0 Datasheet - Page 28

• Manufacturer Part Number: DK-GM-00-1.0
• Description: RF Development Tools Gemini Full Dev Kit ISO14443, ISO18093
• Manufacturer: SkyeTek
• Type: RF Readersr

Specifications of DK-GM-00-1.0

• Rohs: yes
• Product: Development Kits
• Tool Is For Evaluation Of: ISO14443, ISO18092
• Frequency: 13.56 MHz
• Operating Supply Voltage: 5 V
• Description/function: Development kit for SkyeModule Gemini NFC OEM reader module
• Interface Type: I2C, Serial, SPI, USB
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 20 C
• For Use With: ISO14443, ISO18092

Main 720.328.3425 Fax:[phone]
SkyeModule Gemini Datasheet
11.2 TTL Serial
A two-wire serial connection (no handshaking) is provided on the TXD and RXD lines where TXD and
RXD are from the module's point of view. Data exchange between the host and the SkyeModule
Gemini occurs according to SkyeTek Protocol v3 (ASCII or Binary mode). See more about the
protocol in section 13, Communicating with the Module.
Serial communication is the most common and robust host interface for this module in an
embedded system. Because the interface is asynchronous, the module responds immediately upon
command completion instead of waiting for a host clock as in SPI or I
Figure 11-2 shows a sample circuit that lets you connect the SkyeModule Gemini without the host
interface board. Figure 11-3 shows examples of typical communication on a signal level.
SkyeModule Gemini
J3 – Pins 10, 16
J3 – Pin 4
J3 – Pin 2
GND
RXD
TXD
Figure 11-2: TTL Serial Connection Diagram
2
C.
RX
TX
GND
1525 Market St. Ste 200
TTL Serial Host
3.3V or 5V Levels
Denver, CO 80202
www.skyetek.com
Skyetek Inc
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