IC-JX_16 Datasheet, PDF (31/48 Pages) IC-Haus GmbH – 16-FOLD 24 V HIGH-SIDE DRIVER

iC-JX
16-FOLD 24 V HIGH-SIDE DRIVER WITH µC INTERFACE
DESCRIPTION OF FUNCTIONS
Rev C2, Page 31/48
Overview I/O configuration
input
configure input and pull-up
or pull-down currents
(Control Word 2A/B)
I/O
configuration
output
configure output and pull-up
or pull-down currents
(Control Word 2A/B)
configure I/O filters
(Control Word 1A/B)
configure I/O filters
(Control Word 1A/B)
no
Change-of-input Message
interrupt (DCHI ) needed?
yes
configure
Change-of-input Interrupt Enable A/B
configure Overcurrent filter
(Control Word 4)
flash-pulse needed ? ^yes
no
configure flash-pulse
(Control Word 3A/B)
configure flash-pulse enable
for the relevant output
(Flash Pulse Enable A/B)
Overcurrent Message
no
interrupt (ISCI ) needed?
yes
configure
Overcurrent Interrupt Enable A/B
configuration
end
enable outputs
(Output Register A/B)
Note:
Pin POE can disable
all output stages
Figure 6: Configuration of a block of four I/O stages
I/O configuration
iC-JX is a bidirectional I/O device with 4x4 high-side
driver stages. The input or output function can be sepa-
rately selected for blocks or nibbles of four I/O stages
with Control Word 2 (Addr. 0x16 and 0x17, P. 18).
Each block can also be individually programmed with
various filtering options for the debouncing of I/O pin
signals (Control Word 1, Addr. 0x14 and 0x15, P. 16)
or overcurrent messages (Control Word 4, Addr. 0x1A,
P. 21).
I/O stages
Nibble
0
1
2
3
Pins
IO1..4
IO5..8
IO9..12
IO13..16
Table 7: I/O stage nibbles
pins/supply voltages
Supply Voltage
VB1
VB2
VB3
VB4
and corresponding
Programmable current sources
The programmable pull-up- resp. pull-down current
sources can be set independently of the I/O mode (ei-
ther input or output mode). In both modes current val-
ues of 200 µA, 600 µA or 2 mA are available either as
pull-up or pull down. Configuration is done with Control
Word 2 (Addr. 0x16 and 0x17, P. 18 f.).