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9. Interface
9.1 Pin Layout
Pin No.
1 Vcc
2 RXD
3 TXD
4
5
6 TES
7 /INI
8 /SHUT
9 TES
10 GND
Explanation of the pins
Vcc:
Power supply pin. Connect a power source and the voltage range is from 2.5 to 5.5 VDC.
RXD:
Data output pin that is the DCE compliant
TXD:
Data input pin that is the DCE compliant
CTS:
Hardware flow control output pin that is the DCE compliant (Hardware flow control is enabled
when the signal is high level.)
RTS:
Hardware flow control input pin that is the DCE compliant (Hardware flow control is enabled
when the signal is high level.)
/INI:
Parameter initialization pin. Leave this pin unconnected when it is not used. To initialize the
registers, set the /INI pin to low level at power-on or combine the operation of this pin with the
operation of the /SHUT pin. After the registers (parameters) are initialized, the DP01 operates in
normal mode.
/SHUT: Power-off pin. When this pin is set to low level, the main power of the FDP02 is cut and becomes
"power-down" mode. When the setting of this pin is high level, the FDP02 is in normal operation
mode.
TEST: Test pin. Do NOT use this pin. This pin is only for maintenance by the manufacturer.
GND:
Ground pin
9.2 Recommended Connector
Hirose Electric Co., Ltd.
Pin name
Input/output
－
OUT
IN
CTS
OUT
RTS
IN
T
－
IN
IN
T
－
－ Ground
Parameter setting of the register will be vanished if the /SHUT pin
becomes low level and the operation mode becomes "power-down"
mode. Therefore, DO NOT connect /SHUT pin during REG
command setting.
After releasing from the power-down mode, parameter settings of
registers that were changed by commands will be initialized. Thus,
the parameter settings should be done by the memory registers when
the "power-down" mode is used or set the parameters again after
returning from the "power-down" mode.
It will take 90 ms at the maximum to return from the "power-down"
mode to normal operation mode.
DF12E(3.0)-10DP-0.5V
Remark
Power supply (3.3 to 5.5 VDC)
Data output
Data input
Hardware flow control
Hardware flow control
(Leave this pin unconnected.)
Parameter initialization
Power-off
(Leave this pin unconnected.)
45
Ver.1.1
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