Device
and operation
CPC307
C P C 3 0 7 U s e r M a n u a l
84
© 2 0 2 2 F a s t w e l v . 0 0 6
4.3.21 LEDs
There are 3 x LEDs on the module (HL1 to HL2). Assignment of the module LEDs is shown in
Table 4.45.
Table 4.45. Assignment of module LEDs
LED
Color
Function
HL3
Yellow
Indication of +5 V supply voltage
HL1
Green
User LED. Controlled by GPIO2[4] line
HL2
Green
User LED. Controlled by GPIO2[5] line
The module has an XP3 for connecting external LED indication.
The pin assignment is shown in Table 4.46. Functional diagram of signal output for indication
is shown in Figure 4.34.
Table 4.46. Pin assignment of the XP3 connector
Pin
Circuit current
Function
1
– 2
R=510, U=+5V
Ethernet Link ACT
3
– 4
R=510, U=+5V
Ethernet Duplex
5
– 6
R=330, U=+1.8V
WDO ACT for module versions lower than 4.
х
BIOS DEFAULT for module versions 4.
х
7
– 8
R=330, U=+3.3V
CPU_RESET
9
– 10
R=510, U=+5V
IDE ACT
11
– 12
R=330, U=+3.3V
USER1 (GPIO2_5)
13
– 14
R=330, U=+3.3V
USER0 (GPIO2_4)
Figure 4.34. Connection of LEDs to the XP3