BL4S200 User’s Manual
29
3.2.1.2 Sinking Digital Outputs
When you configure a configurable I/O
pin as a sinking output, be sure to con-
nect an external voltage source up to
36 V DC across the corresponding
+K
x
and GND on connector J1, J2, J9,
or J10, and set the pullup jumper on
the corresponding JP1/JP2/JP8/JP9
header to +K
x
.
Table 4 lists the banks of configurable
I/O and the correspK
x
.
Figure 9. Load and +K Power Supply
Connections for Sinking Digital Output
Table 4. BL4S200 Sinking Outputs
Digital Inputs
+Kx
Configuration
Header
Pins
Jumpered
Pulled Up/Pulled Down
DIO0–DIO7
KA on J10
JP9
1–2
I/O pulled up to +K
x
DIO8–DIO15
KB on J9
JP8
3–4
Do not use these options for a
sinking output.
DIO16–DIO23
KC on J1
JP1
5–6
DIO24–DIO31
KD on J2
JP2
7–8
CAUTION:
Do not simultaneously jumper more than one setting on a particular
jumper header (JP9, JP8, JP1, and JP2) when configuring a bank of configurable I/O.
CAUTION:
Do not allow the voltage on a configurable I/O pin to K
x
to
avoid damaging the input.
Sinking Output
setting
+5 V
+K
x
DIO0DIO31
LOAD
(200 mA
max.)
+K
x
GND
electronic components distributor