IC-JX_16 Datasheet, PDF (25/48 Pages) IC-Haus GmbH – 16-FOLD 24 V HIGH-SIDE DRIVER

iC-JX
16-FOLD 24 V HIGH-SIDE DRIVER WITH µC INTERFACE
Pin Status: logic level change (interrupt)
Rev C2, Page 25/48
A read access to one of the registers Interrupt Status Register A/B, Overcurrent Message A/B or Change-of-input
Message A/B while an interrupt message is active (DCHI, ISCI, IET1, IET2, IEOC, ISD, IUSD or IUSA) locks all of
these registers against further changes: the registers are re-enabled only when reset via EOI (see P. 21). Any
interrupt such as a successive logic level change interrupt message which occurs during the read-out phase and
before a reset with EOI is trapped by an interrupt pipeline. If this happens, the message at NINT resp. D1/SOC or
D2/SOB cannot be deleted by EOI, i.e. NINT remains low resp. D1/SOC or D2/SOB constantly remain on high. In
this instance, EOI fills the overcurrent message from the pipeline.
If enabled with IENx (see P. 28) the following registers are used to indicate a state change at input IOx.
The DCHx bits may be erased selectable by re-enabling IENx after disable.
Change-of-input Message A (read only)
for I/O stages in input mode
Bit
Name
7
DCH8
6
DCH7
5
DCH6
4
DCH5
3
DCH4
2
DCH3
Addr. 0x02
reset entry: 0x00
1
0
DCH2
DCH1
Bit7...0 0
No change of state at the input IOx or no interrupt enable
(r)
DCH8...1 1
Input IOx has had a change of state enabled for interrupt messages
Change-of-input Message B (read only)
for I/O stages in input mode
Bit
Name
7
DCH16
6
DCH15
5
DCH14
4
DCH13
3
DCH12
2
DCH11
Addr. 0x03
reset entry: 0x00
1
0
DCH10 DCH9
Bit7...0 0
No change of state at the input IOx or no interrupt enable
(r)
DCH16...9 1
Input IOx has had a change of state enabled for interrupt messages
Pin Status: logic level (status)
INx indicates the state for IOx (via I/O filter or bypass) and does not generate any interrupts.
Input Register A (read only)
Addr. 0x00
reading of inputs / output feedback
reset entry: 0x00
Bit
7
6
5
4
3
2
1
0
Name
IN8
IN7
IN6
IN5
IN4
IN3
IN2
IN1
Bit7...0 0
Input/Output IOx read ’0’
(r)
IN8...1 1
Input/Output IOx read ’1’
Input Register B (read only)
reading of inputs / output feedback
Bit
Name
7
IN16
6
IN15
5
IN14
4
IN13
3
IN12
2
IN11
Addr. 0x01
reset entry: 0x00
1
0
IN10
IN9
Bit7...0 0
Input/Output IOx read ’0’
(r)
IN16...9 1
Input/Output IOx read ’1’