User's Manual

OPERATION GUIDE.
OG_STD-502-R_v09e Circuit Design, Inc.
6
4. Terminal specifications
Terminal Terminal Input/ Input/Output level (V)
No. name Output Low Hi
Internal equivalent circuit
Output 0 to 0.25 Vref -0.4 to Vref
1 CLK
TX: Synchronous CLK for TX data input
RX: Synchronous CLK for RX data output
Output 0 to 0.25 Vref -0.4 to Vref
2 DIV
This terminal shows which of the two receiving
terminals received the signal actually used for data
output. .
DIV
Data receiving
terminal
L RF in
H RF in/out
Input 0 - 0.25 Vcc -0.4 to Vcc
3 RST
The initialization terminal for coincidence detection
function*.
The internal ASIC is reset with ‘L’ level for more
than 100 μs.
Normally set this terminal to ‘H’.
* For details of the frame coincidence detection function,
refer to “Frame coincidence detection function” on page
16.
Input 0 to 0.25 Vref -0.4 to Vref
4 TXD
The input terminal for serial communication.
Settings for serial communication
Baud rate 19.2 kbps
Character bits 8 bits
Parity none
Stop bits 2 bits
Terminal
Level
Translator
Terminal
Level
Translator
Terminal
Level
Translator
Terminal
Level
Translator