USING THE UNIVERSAL DEVELOPER'S KIT
72
LZT 123 8020 R1A
Operation Mode Settings:
Switch Position (S501)
Function
ON/OFF
Position 1
DTMS
ON
Position 2
CTS
ON
Position 3
DTR
ON
Position 4
DFMS
ON
Position 5
RTS
ON
Position 6
DSR
ON
Position 7
WAKE
ON
Table 5: Baseline Dip Settings for Gx-47/48
12.2 Operation Mode
Serial communication between the target module and the RS-
232 level shifters is easily enabled / disabled via dip switches
(S501). This allows testing of flow control (HW or None). This
feature also allows the connection of your application's serial
interface to the module while providing other connections, such
as power, through the developer's board.
Switch Signal ON
OFF
Position 1 DTMS
Normal Operation
If External application is
directly connected to System
Connector Header
Position 2 CTS
HW Flow Control enable
If External application is
directly connected to System
Connector Header
Position 3 DTR
Normal Operation
If External application is
directly connected to System
Connector Header
Position 4 DFMS
Normal Operation
If External application is
directly connected to System
Connector Header
Position 5 RTS
HW Flow Control enable
If External application is
directly connected to System
Connector Header
Position 6 DSR
Normal Operation
If External application is
directly connected to System
Connector Header
Position 7 WAKE
Signal is grounded
(Logic Low)
Signal is floating (Logic High)
Table 6: Description of Operation Mode Switch Settings
When switches 1 through 6 are in the OFF position, they are
disconnected from the level shifters on the developer's board.
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