|
Select High Speed or Normal Speed Mode
The
JP1
is used to select high speed mode or normal speed mode of port 1
and the JP2 is used to select high speed mode or normal speed
mode of port 2; the clock is 7.3728MHZ for high speed mode, and
1.8432MHZ for normal speed mode. For high speed mode, the baud rate
speed up to 460K.
Pin
|
Clock
Rate
|
Mode
|
Short
1,2
|
1.8432MHZ
|
Normal
Speed
|
Short
2,3
|
7.3728MHZ
|
High
Speed
|
|